frontrow CM900 Classroom Communication System
YOU’RE ABOUT TO MAKE LEARNING MORE ACCESSIBLE
- Welcome to FrontRow — the teacher- and tech-friendly way to improve the learning environment in every classroom.
- To make your configuration of the FrontRow CM900 as efficient as possible, we recommend that you first read the section in this guide called Before You Begin.
- If you follow the steps set out in this Configuration Guide and organize everything you need beforehand, you’ll find setting up your FrontRow CM900 classroom communication system to be quite simple. Of course, if you run into any obstacles, you can always find contact information for our technical support representatives at www.gofrontrow.com/contact-us
- Thank you for choosing FrontRow! You’re just steps away from a more productive classroom.
Step 1: Before you begin
The FrontRow CM900 is an amplification and control device that is used in ezRoom® classroom AV management systems and in Conductor™ paging, bell and intercom systems. This one device switches and amplifies analog audio, encodes/decodes streaming audio, auto switches between local classroom audio and IP audio, and allows for direct or “pass-through” control of serial devices such as a projector. It resides on an IP network so it can be accessed remotely and securely to execute its functions.
- Visualize your goal
When your FrontRow CM900 is installed as part of an ezRoom TRIO, it may look something like this:
- Get familiar with input and output ports
- AUX Power Out (12Vdc, 1.0A)
Used to power other components. Most often used in ezRoom applications to power the TB-14. - Channel 1 Audio Line In (switchable) Connect other classroom media sources (computer, wireless mic receiver, DVD) to play audio through connected speakers.
- Channel 1 Switch (Stereo/Balanced)
Use these switches to change the input for Channel 1. Set both switches to stereo for stereo input or both switches to Balanced & Mono for mono input. Do NOT have one switch on stereo and one on balanced. - Channel 2 Audio Line In (stereo) Connect other stereo classroom media sources.
- Channel 3 Audio Line In (stereo)
Connect other stereo classroom media sources. - Channel 1 Switch (Stereo/Mono)
Use these switches to change the input for Channel 1. Set both switches to stereo for stereo input or both switches to Balanced & Mono for mono input. Do NOT have one switch on stereo and one on mono. - PA Out
Terminal to connect speakers. 2 x 8w (8Ω), 2 x 16w (4Ω). - లైన్ అవుట్
Audio output for lesson capture or to send audio to another device. - Main Power In (12Vdc, 5.0A)
- PoE Power In (12Vdc, 2.0A)
Power jack to connect separate PoE extractor module. Provides power in event of a mains interruption. - LAN (RJ45)
Provides network connection to device. 10/100Mb/s (auto sensing) using either TCP/IP or UDP protocols. - RS232
Can be used to control two RS232 devices.
The second serial port can also be configured as an input to allow the CM900 to be controlled via RS232. - PGO Detect
Page override interface with 20/70/100V analog paging systems. Automatically mutes audio coming from CM900 system during a paging event. - Alarm Detect
Connect to an alarm system to trigger events or mute audio when the alarm is triggered - Intercom (RJ45)
Connect the CB75 intercom panel microphone for communication with front office when push-to-talk is required (can also be used with CB85). Connect a CB50 volume control with a TB8 cable for basic volume and mute control. Connect the CMBT
Bluetooth audio receiver for wireless audio streaming and pass-through support for CB85 mic and CB55 volume control - IR బ్లాస్టర్
Routes IR control signals to devices connected via an IR emitter cable. - రిలే (2.0A)
Allows triggering of third party devices,like strobes or door locks. Can be wired for “Always Open” or “Always Closed”. - PA Fault LED*
Indicates the mute/unmute status of the local audio (“CH1 Line In” and “CH2 Line In” ports). Normal operation: solid amber (muted), unlit (unmuted). - Error LED*
Indicates firmware error. Normal operation: unlit. - స్థితి LED*
Indicates the overall operational status of the CM900. Normal operation: green LED blinks ½ second on + ½ second off. - LAN ఇన్
Used with #22 CLAN Out; connect to a network switch. - CLAN Out
Used with #21 LAN In to add power to the network connection; connect to a CB6000 or CB2000 wall control.
- AUX Power Out (12Vdc, 1.0A)
- What do you want to control? How do you want to control it?
Your CM900 can let teachers control or communicate with practically any device or person. Now is the time to plan what you want to do.- Example 1: Typical setup with projector
ఇందులో మాజీample, the CM900 works to turn a projector on and off, switch inputs or execute any command the projector has in it’s control library. The diagram also shows optional Bluetooth integration. If FrontRow Conductor™ is being used in the school, the CM900 can also initiate intercom calls and trigger alerts. In combination with powerful tools like FrontRow Maestro™, this can allow you to ‘network’ and manage projectors that are otherwise not online. Below are the basic connections for controlling a projector serially.
- Example 1: Typical setup with projector
- Gathering information
You will save a lot of time by working with the school to gather information up front.- Make a list of all rooms to be outfitted and the equipment to be controlled in each one.
- The IT department will provide you with IPv4 addresses for each CM900 and other FrontRow IP addressable components (these must be static, or fixed, IP addresses), along with other network information, such as the subnet mask, router IP address and FrontRow server IP address.
- Will the room include voice ampలిఫికేషన్?
- Will the room be served by a Conductor system for paging? For intercom?
- Will there be an IR-controlled device?
- Will the room controller be a FrontRow CB2000, CB2050, CB55 or CB6000?
- Organize the network information in a spreadsheet such as the one found at https://www.gofrontrow.com/sites/default/files/how-to/room-control-project-planning-template.xls
Step 2: Getting Your Configuration Files
Your CM900 needs information about the other devices it needs to communicate with, and how. If your configuration — the collection of commands you want to issue from CM900 and the devices you want to control — is the same in each room in your installation, then you will need only one configuration base file which you will modify with specific
IP addresses unique to each room. If the situation is different from room to room, you will need different base files that are tailored to each configuration.
There are several ways to create your configuration files:
- వెళ్ళండి gofrontrow.com/guides-resources and find the Configuration Files & Scripts section, then the ezRoom heading. Each Base Configuration File stored here includes the control logic programming needed for the most common applications.
- If your configuration is uncommon enough that it’s outside the scope of the configuration files, and you have some basic familiarity with programming, you can easily build your own user interface designs or control logic programming. When configuring your CM900, we recommend using Chrome, Firefox or Safari browsers.
Step 3: Preparing for Configuration
You can reconfigure the CM900 at any point if your setup changes or you make a mistake — but it’s best to plan ahead so that you don’t have to (see Step 1).
For greatest efficiency, we recommend configuring all of your CM900 systems all at once in the office prior to going to the installation site, but you can also do it room by room at the school if you prefer.
- Gather your configuration tools
To configure your CM900 systems you will need to collect:- Your CM900 systems
- Enough Cat 5e cable to connect between the CM900 and the computer you will use for configuring the device
- A computer with RJ45 connection and a web browser installed (Chrome, Firefox or Safari recommended)
- A completed ezRoom Installer Planning Template or other detailed information about the school’s available IP addresses for your CM900 systems, and other components (see Step 1)
- Your Base Configuration File(s) (see Step 2)
- Connect your configuration setup
- Take your first CM900 and connect it to your configuration equipment as shown here.
- Connect your laptop computer’s LAN port to the CM900 LAN port with a Cat 5e, or network cable.
- Change the IPv4 address on your laptop to static address 192.168.1.100. See Appendix D for instruction.
Step 4: Configuring the CM900
Your CM900 has several parameters that can be configured to tell it how to communicate with other devices in an ezRoom or Conductor installation. While each installation is different most of the default parameters will be appropriate.
- Access CM900
తెరవండి a web browser on your laptop and in the URL field type the IPv4 address 192.168.1.103 and press enter. This is the default static IP address of the CM900 and will likely be changed when you configure it per the school’s IP addressing scheme.
You will be connected to your CM900 and see a screen like this:
- గురించి
పరికర సమాచారం
The name you choose should contain meaningful information, such as the classroom number, so that a person accessing the device remotely will have appropriate context. Also on this screen you can see the device MAC address and firmware version.
పాస్వర్డ్
If the project requires it you can password-protect the CM900 configuration screens by setting a password. If setting a password for the first time, the “old password” is calypso. Choose a new one based on the school’s guidelines and record the information. The user name is always admin.
- లోడ్/సేవ్ చేయండి
The set of configuration parameters created in this interface can be saved in a file for use with other CM900s. In this section you would “save” a configuration file or “load” a file from a location on your computer. Some of the parameters would still need to be changed (e.g., the IP address).
- లోడ్ కాన్ఫిగరేషన్
Browse for a previously saved CM900 configuration file and load it on this device.
గమనిక: కాన్ఫిగరేషన్ files created on FrontRow devices (e.g. Smart Receiver, CM3000) are not interchangeable between device types. - కాన్ఫిగరేషన్ను సేవ్ చేయండి
కాన్ఫిగరేషన్ను సేవ్ చేయండి file from this device for use on other CM900’s.
గమనిక: కాన్ఫిగరేషన్ files created on FrontRow devices (e.g. Smart Receiver, CM3000) are not interchangeable between device types.
- లోడ్ కాన్ఫిగరేషన్
- PA / Intercom
These settings are for use when installed with the Conductor IP-based Paging, Intercom and Bell system or with a 25V, 70V, or 100V analog paging system.
- Intercom/PA Mode
Intercom Device Checking Intercom device tells the Conductor server that this CM900 is part of the intercom system. Master Device Checking Master device tells the Conductor server that this CM900 has a microphone and is allowed to initiate pages. This is set only when the CM900 is part of a Conductor admin station, not when it is simply a part of the intercom system. - Push to Talk Mode (PTT)
When used with a CB75, push-to-talk microphone, the push button can be configured in one of three ways.
Disabled (always handsfree) Audio from the in-room microphone can be heard in the front office with no action from the user in the room.
After push (initially handsfree) Audio from the in-room microphone can be heard in the front office with no action from the user in the room until the button is pushed. Thereafter, the user must push the button in the room to activate the microphone. - Always (never handsfree) Audio from the in-room microphone will not be heard until and unless the user in the room is pushing the button.
GPI మోడ్
GPI Mode is used with a CB75. - Rotary + Button Choose this so the push to talk (PTT) microphone can be used for classroom intercom 3 GP Inputs Disables the rotary knob. Choose this if the hardware lines are to be used as separate GPI inputs.
Incoming Audio
PA volume The volume of incoming audio from Conductor (pages, bells and intercom); it does not affect the volume of the local (in room) audio.
PA Release The amount of time it takes for the local (in room) audio to return to normal volume after an incoming audio stream from Conductor. - Outgoing Audio (talk-back)
Gain setting for the audio sent back to the front office from the in-room intercom microphone, i.e. the wall (CB75) or ceiling (CB85) unit. The gain setting for the pendant microphone when used as the intercom microphone is set through Ch1 line input gain. The corresponding Routing checkbox, e.g., “Include sound from Ch1 Line-in”, must be selected to enable the gain adjustment. - Routing for Outgoing Streams
Select which audio stream is sent back to the front office. If both are selected, the combined streams will be sent.
Include sound from Intercom Streams only audio from the from the CB75 or CB85
Include sound from Ch1 Line-in Streams the audio from the audio that is coming in through Ch1, typically a teacher microphone - External Page Override
For use with 25V, 70V and 100V analog paging systems. The CM900 will mute all audio in the room when an announcement is made over the facility’s paging system. Analog page override requires a connection to the facility’s PA system. For information about connecting the page override function to the PA system, see Juno Page Override Installer Guide.
Sensitivity Determines how easily the page override will trigger based on the detected voltage of the paging system. If the CM900 does not detect a page, increase sensitivity. If the CM900 triggers when there is no page, but voltage is detected, decrease sensitivity.
PGO Release The amount of time it takes for the local (in room) audio to return to normal volume after the audio from the paging system ends.
- Intercom/PA Mode
- ఆడియో
These settings affect the local audio in the room (microphones and auxiliary sources) and other device settings
- వాల్యూమ్
Adjusts the master volume of all the inputs together (microphones and auxiliary sources). Individual volumes can be adjusted based on relative volume of devices or microphones. Note that this is not a permanent setting — it will change when the volume is changed in other ways, e.g., using Teacher Edition or Encore software, or via control devices such as the CB6000, or even the knob on a CB75. - ఆక్స్ ఇన్పుట్ వాల్యూమ్
Adjusts the individual volumes of the auxiliary inputs. Each input can have a different volume setting. For example, a DVD player can be set at higher volume than the teacher’s computer. Adjusting the master volume will keep the same relative difference between the inputs. - Aux Out Volume
Adjusts the volume of the auxiliary (Line Out) audio output. This is important for lesson capture or integration with ALD’s (Assistive Listening Devices)
- వాల్యూమ్
- Network / COM
- నెట్వర్క్ కాన్ఫిగరేషన్
- Automatic IP Configuration (DHCP) Use this setting to have this device request an IP address from a DHCP server; this should be enabled only if the IT department has a DHCP server online and has set up static (fixed) IP address reservations for FrontRow devices; otherwise
- manually enter the IP address reserved for the device in the IP Address field. It is highly recommended that static IP addresses be used.
- IP Address The field displays and also enables entering (changing) the IP address for the device; while the default address is 192.168.1.103. You must use the address provided by the IT department and ensure that each device has a unique address.
- IP Subnet Mask Provided by the IT department; if used as part of a Conductor system, the subnet mask must be 255.255.255.0.
- Router IP Address Required when this device is in a network in which router switches determine connectivity across subnets. Provided by the IT department.
- Primary NameServer IP Address Optionally provided by the IT department. Rarely used with this device, only enter an IP address here if specifically requested by the IT department.
- Secondary NameServer IP Optionally provided by the IT department. Only enter an IP address here if specifically requested by the IT department.
- Current Remote Management (CNAP) Port Under rare conditions, it may be necessary to change the network communication ports used by other devices and software to communicate with this device. If a such a change is necessary, please direct your browser to the /cfg/advanced.htm page for this device and refer to the help there.
- సీరియల్ పోర్ట్ కాన్ఫిగరేషన్
- COM Port The COM Port menu specifies the COM port number that the parameters on this page apply to; the CM900 has 2 COM Ports.
- Baud Rate Specifies the data speed at which this device should communicate with the attached serial device; while 9600 and 19200 are typical for projectors, data speeds vary by manufacturer.
- Stop Bits Specified by the manufacturer of the connected serial device, but is typically 1.
- Parity Specified by the manufacturer but is typically None.
- Set to input control mode (COM Port 2 only) Sets the second serial port to a mode where it accepts incoming serial commands to control things like volume. Ref. Serial Commands in Appendix A.
- కమాండ్ లైన్
Enter Command- Use this section to test commands sent to a device to verify that it performs the action desired. Use the drop down list to select examples of FrontRow command protocols.
- Use this section to test commands sent to a device to verify that it performs the action desired. Use the drop down list to select examples of FrontRow command protocols.
- సత్వరమార్గాలు
Shortcuts are name substitutions. Defining Shortcuts makes deployment of multiple FrontRow devices of the same type easier. Use Shortcuts in defining actions that represent the IP addresses of the devices you’ll control. This means that your configuration file can be written as a template with IP addresses explicitly defined in only one place (the Shortcut), needing to be changed only once rather than repeatedly throughout your Actions. This saves a tremendous amount of labor as you re-use the configuration file to control new devices from room to room.
- Action Creator
Actions are specific instructions that are sent to specific devices (e.g. to turn a projector on or change inputs on a projector). Once defined, you will link them to various Events which can be triggered in a variety of ways.
To create an Action
- కొత్త క్లిక్ చేయండి
- Name the Action
- Enter the action string or Command
Actions can be created using two methods
- Using a wizard
- Select an Action Type wizard using the Action Entry Method drop-down list
- Using the wizard’s prompts, enter the syntax necessary to build the specific action
- Using a Template
- Select the Manual entry method from the Action Entry Method list, then select a template from the second drop-down list
- Edit the syntax necessary to build the specific action (e.g. IP address)
Event Creator
With your collection of discrete Actions defined, you can now specify what Events will cause one or more of those Actions to be executed. Events can be triggered in a variety of ways, Encore and Teacher Edition software, FrontRow Control panels, a FrontRow push button (CB75 microphone or CB50) or from a non-FrontRow GPI trigger. 
To create an Event
You want to plan which trigger you want, if any. If no specific trigger is needed, plan on selecting event 13 to 20, then click Edit. Or, select the event with the trigger you plan to use and click Edit. Clicking on New opens the next undefined event number. 
- కొత్త క్లిక్ చేయండి
- Name the Event
Triggers can be physical devices such as a non-FrontRow push button connected to the GPI (GPI open / close), or a FrontRow device connected to the RJ45 intercom jack (Wall knob press, release, turn right, or turn left). When that defined trigger is detected by the device the matching Event will be executed. For each such Event, the Actions for the Event will execute according to that Event’s mode setting (see below). If you care about the order in which Actions happen, put them all in a single Event and set the mode to Each (in order). - Choose a Mode. The mode determines how and in what order each action in the event will be invoked.
All (in parallel): All actions for the event will be executed but in no particular order. When order does not matter but you want things to happen as quickly as possible, this is the recommended choice.
Each (in order): Actions for the event will be executed in the order listed. This is useful when the order matters to you; for example, turning off a projector before retracting a projector screen. To change the order of the actions in the event, drag actions up or down with the three lines next to the action name.
One per call (in sequence): The actions will be treated as a loop, executing the next Action in the series each time the Event is initiated (e.g., with 2 actions: Action 1 on the first button press, Action 2 on the second button press, Action 1 on the third button press, etc.). This is useful for toggle functions like power or mute. - Add Actions
To add actions, select them and click Add Selected. Actions can be reordered by clicking and dragging the lines to the left of the action name in the Current Action List.
When there are multiple Actions, they will be performed in the order indicated by the mode selected in step 4.
సవరించు
To use a predefined trigger or specific Event, select the Event number and click Edit. Enter Event Name, mode and select action(s). Then Save. This can also be used the change previously defined Events.
Appendix A: Control commands for the CM900
Action/Network Commands
The following are some of the more frequently used commands within Actions or sent over the network. For the complete guide to all such commands, refer to the Calypso Action Control Language (CACL) manual found in the Guides & Resources section of the FrontRow webసైట్, www.gofrontrow.com/guides-resources
| CM900 Volume Commands | ||||
| సింటాక్స్: #AUDn[Mute,Volume]; | ||||
| పేరు | అవసరం / ఐచ్ఛికం | డేటా రకం | ఫార్మాట్ | వివరణ |
| n | అవసరం | స్థిరమైన | 1 | Denotes the sub-device. Since the CM900 has only one sub device, this is always 1 |
| మ్యూట్ చేయండి | ఐచ్ఛికం | వేరియంట్ | Mఆదేశం
ఎక్కడ ఆదేశం is 0, 1, or + |
Audio mute:
|
| వాల్యూమ్ | ఐచ్ఛికం | వేరియంట్ | Vఆదేశం
where Command is an integer from 1 to 100, +, or -. The + or – may be followed by a single digit (1-9) indicating the change in volume steps to be made. If no digit is entered, the volume will increment by one. |
Sets the audio volume to:
|
Exampతక్కువ:
|
||||
| నెట్వర్క్ (NET) ఆదేశాలు | ||||
| సింటాక్స్: #NET[కనెక్షన్, StringType. పరికరం ‘Command’]; | ||||
| పేరు | అవసరం / ఐచ్ఛికం | డేటా రకం | ఫార్మాట్ | వివరణ |
| కనెక్షన్ | అవసరం | వేరియంట్ | Fn
where n is 1 or 2 |
Defines the connection type:
• TCP/IP (1) • UDP (2) |
| స్ట్రింగ్ టైప్ చేయండి | ఐచ్ఛికం | వేరియంట్ | Tn
where n is 1 or 2 |
Defines the string type:
• ASCII string (1) • HEX string (2) If you leave StringType blank, a default of T1 is assumed |
| పరికరం | అవసరం | వేరియంట్ | If using Shortcuts (recommended): @{shortcutname}
For explicit device references: Iచిరునామా, పిపోర్ట్ డిఫాల్ట్ పోర్ట్ 7267 |
A string expression that is the valid name of a shortcut (see section 8) or the IP address and port of the device being controlled. |
| ఆదేశం | అవసరం | వేరియంట్ | Specific to device. For device commands, see manufacturers instructions | A string expression that contains the command. |
| Example: (increments the audio input channel of a remote ezRoom by one over TCP/IP protocol using an ASCII string): #NET[F1,@{shortcutname},’#AIN1[I1,L+];’]; | ||||
| ఇంటర్కామ్ (HTP ఆదేశాలు | ||||
| సింటాక్స్: #HTP[URL]; | ||||
| పేరు | అవసరం / ఐచ్ఛికం | డేటా రకం | ఫార్మాట్ | వివరణ |
| URL | అవసరం | వేరియంట్ | http: type URL స్ట్రింగ్ | URL రిమోట్ యొక్క webసైట్ |
| సర్వర్ | అవసరం | వేరియంట్ | If using Shortcuts (recommended): @{shortcutname}
For explicit device references: IP address of the Conductor server |
A string expression that is the valid name of a shortcut (see section 8) or the IP address of the Conductor server. |
| Example with shortcuts: (initiates an intercom request to the admin station located in the office): | ||||
For network (NET) commands, we recommend using UDP (“F2”) as the preferred protocol as it tends to be faster.
| సీరియల్ (COM) ఆదేశాలు | ||||
| సింటాక్స్: #COMn[StringType, “Command”]; | ||||
| పేరు | అవసరం / ఐచ్ఛికం | డేటా రకం | ఫార్మాట్ | వివరణ |
| n | అవసరం | వేరియంట్ | Use 1 for COM1; use 2 for COM2. | Denotes the COM port to be used, corresponding to the serial device to be controlled. |
| స్ట్రింగ్ టైప్ చేయండి | ఐచ్ఛికం | వేరియంట్ | Tn where n is 1 or 2 | Defines the string type:
మీరు వదిలేస్తే StringType blank, a default of T1 is assumed |
| ఆదేశం | అవసరం | వేరియంట్ | Specific to device. | A string expression that contains the command. |
| Example (turns on a projector via COM 1 using an ASCII string command): #COM1[T1, “PWR ON\r”]; | ||||
| IR-అవుట్ యూనివర్సల్ ఆదేశాలు | ||||
| సింటాక్స్: #XROn[F2,“Command”]; | ||||
| పేరు | అవసరం / ఐచ్ఛికం | డేటా రకం | ఫార్మాట్ | వివరణ |
| n | అవసరం | వేరియంట్ | Use 1 for IR port 1. | Denotes the IR port to be used. |
| ఆదేశం | అవసరం | వేరియంట్ | Specific to device. | A string expression that contains the command. |
| Example (turns on a DVD player):
#XRO1[F2, “ 40000300015430309DA03F508FC03A704D6039…3A704D803F808FC03A704D403A104FB03A704D903”]; |
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| అలారం ఆదేశాలు | ||||
| సింటాక్స్: #ALM[“ఆదేశం”, Dసమయం]; | ||||
| పేరు | అవసరం / ఐచ్ఛికం | డేటా రకం | ఫార్మాట్ | వివరణ |
| ఆదేశం | అవసరం | వేరియంట్ | ఉపయోగించండి ON to start the alarm. Use ఆఫ్
అలారం ఆపడానికి. |
Starts/stops the beep. |
| సమయం | అవసరం | వేరియంట్ | Integer representing multiples of 4ms duration. | Sets the duration. |
సీరియల్ ఆదేశాలు
The following commands can be used to control the CM900 via COM port 2 (when set to the appropriate mode):
Serial Action Control Protocol (SACP)
The Serial Action Control Protocol implemented in some FrontRow devices is intended to be a simple readable protocol for controlling device state, especially for audio control. It is the little sibling to the CNAP/CACL interface used over a network. That interface is much more sophisticated and powerful while this serial interface is intentionally less complex.
All commands in the serial protocol must begin with a hash character (‘#’) and end with a carriage-return (hex value 0D).
| ఆదేశం | వివరణ |
| #AVA? | volume query |
| The device should return a value between 0 and 100 (incl). The return string should be terminated by a carriage- return (hex value 0d). | |
| ఆదేశం | వివరణ |
| #AVAn | వాల్యూమ్ సెట్ చేయండి |
| n | a decimal value between 0 and 99 (incl), which sets the main volume of the audio device to the given level. |
| The value range used represents a standardized range which can be applied to all devices. Many devices will have a smaller range of actual settings, but this will be mapped into the standardized range. Thus for all devices 0 will be the minimum available volume setting, 99/100 will be the maximum setting and 50 will be the middle setting (which may or may not be half the decible range). | |
| ఆదేశం | వివరణ |
| #AVDn | వాల్యూమ్ తగ్గించండి |
| n | an optional value between 1 and 9 (incl); default is 1. |
| This command decreases the volume by one స్థానికుడు step (or by n steps if the optional value is included).(Note that one native step may be a change of more than one in the standardized range). | |
| ఆదేశం | వివరణ |
| #AVIn | వాల్యూమ్ పెంచండి |
| n | an optional value between 1 and 9 (incl); default is 1. |
| This command increases the volume by one స్థానికుడు step (or by n steps if the optional value is included).(Note that one native step may be a change of more than one in the standardized range). | |
| ఆదేశం | వివరణ |
| #AVM? | mute query |
| The device should return a value or either 1 (muted) or 0 (not muted). The return string should be terminated by a carriage-return (hex value 0d). | |
| ఆదేశం | వివరణ |
| #AVM | toggle the mute state |
| Turns mute on if currently off, and turns it off if currently on. | |
| ఆదేశం | వివరణ |
| #AVMn | మ్యూట్ సెట్ |
| n | a decimal value of either 1 (turn mute on) or 0 (turn mute off). |
| ఆదేశం | వివరణ |
| #ACH? | channel query |
| The device should return a value between 0 and maxInput (incl). A value of 0 indicates the device is in mixed channels mode, where all input channels are mixed together for output. The return string should be terminated by a carriage-return (hex value 0d). | |
| ఆదేశం | వివరణ |
| #ACHn | వాల్యూమ్ సెట్ చేయండి |
| n | a decimal value between 0 and maxInput (incl), which sets the current active input channel (the one passed to the output). |
| Not all devices support setting the input channel, and for those that do, the maxInput value will vary (often it is 3 or 4). In addition, not all devices will support the mixed channels setting (value 0). | |
| ఆదేశం | వివరణ |
| #ACR | reverse one channel setting |
| This command decreases the channel by one to the next available channel. If the current setting is the minimum one, it will cycle to the maximum available setting. | |
| ఆదేశం | వివరణ |
| #ACF | forward one channel setting |
| This command increases the channel by one to the next available channel. If the current setting is the maximum one, it will cycle to the minimum available setting. | |
Appendix B: Configuration File సెట్టింగ్లు
| సెట్టింగ్ | Saved in Configuration File |
| గురించి | |
| Custom Device Name | అవును |
| పాస్వర్డ్ అవసరం | అవును |
| పాస్వర్డ్ | అవును |
| Intercom / PA Audio | |
| Intercom/PA Mode | అవును |
| Push to Talk Mode | అవును |
| GPI మోడ్ | అవును |
| Incoming Audio Settings | అవును |
| Outgoing Audio Settings | అవును |
| Routing for Outgoing Streams | అవును |
| External Page Override Settings | అవును |
| ఆడియో సెట్టింగ్లు | |
| వాల్యూమ్ | అవును |
| ఆక్స్ ఇన్పుట్ వాల్యూమ్ | అవును |
| Aux Output Volume | అవును |
| Network / COM | |
| నెట్వర్క్ కాన్ఫిగరేషన్ | అవును |
| సీరియల్ పోర్ట్ కాన్ఫిగరేషన్ | అవును |
| సత్వరమార్గాలు | |
| సత్వరమార్గాలు | అవును |
| Action Creator | |
| చర్యలు | అవును |
| Event Creator | |
| ఈవెంట్స్ | అవును |
అనుబంధం సి: ట్రబుల్షూటింగ్
I can’t remember what IP address I changed the CM900 to, and now I can’t communicate with it
- Disconnect the serial cable (if connected) from the RS232 connector
- Build a shorting plug by connecting the TX1 and RX1 lines of connector
- Power down the CM900, then insert the shorting plug.
- Power up the CM900 and remove the shorting plug within 3 to 4 seconds
- If the reset was not successful try again with a shorter or longer time duration before pulling out the plug
- A hardware reset changes the IP address back to the default (192.168.1.103)
- అదనంగా, ది web-access password will be reset back to ‘calypso’ (login name remains admin), though the state of password protection will not change (active or in-active as before). No other settings are changed.
- I can’t remember what web access password I set for the CM900, and now I can’t log onto it
- Reset the CM900 to its default web access password (‘calypso’) by following steps 1 – 5 above
- I’ve connected a new CM900 to my computer for configuration but can’t communicate with it
- If you are using a Windows® computer, clear the ARP cache. From the command prompt, enter: ARP -D IPADDRESS (e.g., ARP -D 192.168.1.104)
Also check the LED indicators
- Status LED should be flashing once per second
- Error LED should not be lit
- I’ve connected the serial cable from the CM900 to the projector and I’ve verified that baud rate and other settings are correct, but I still can’t control the projector.
- Try switching the TX and RX wires. In a 9-pin connector the standard is to use pins 2 and 3 for TX and RX, but there is no standard as to which is which. Most manufacturers use pin 2 for TX and pin 3 for RX, but over 10% use the reverse.
- I’ve connected everything but I can’t get any sound from the amp
- Check Master Volume settings by going to the command line and enter #AUD1[ ];
- Check the PA Fault LED – this should not be lit. If it is lit – and the device is not in mute mode – then, PA may be damaged; see the LED Status information below.
LED స్థితి
- PA Fault LED:
- Indicates the mute/unmute status of the local audio (“CH1 Line In” and “CH2 Line In” ports).
- Normal operation: solid amber (muted), unlit (unmuted)
- Fault status: amber LED is on and constant (no blinking), but does not react to changes in the mute state. Try a power cycle of the device; if it persists, contact FrontRow.
- స్థితి LED:
- Indicates the overall operational status of the CM900.
- Normal operation: green LED blinks ½ second on + ½ second off.
- Firmware update: rapid blinking.
- Fault status: green LED is on and constant (no blinking). Try a power cycle of the device; if it persists, contact Frontrow.
- Fault status: rapid blinking randomly or when NOT executing firmware update, contact FrontRow.
- లోపం LED
- Indicates firmware error.
- Normal operation: unlit.
- During firmware update: amber LED is rapid, intermittent blinking
- Fault status: amber LED is on and constant (no blinking).
- The specific fault can be confirmed by accessing the device’s web page and checking the Status line for ‘Error Trap
- Detected’. To clear this error, enter the following command on the device’s web page in the Command Line window:
- #CTL[‘SOFTRESET’]; Then press the Send Command button.
- Fault status: amber LED blinks in a repeating pattern at the end of the update process, contact Front
Appendix D: Give Your Computer a Static IP Address
For the duration of the configuration, your computer needs to have a specific IP address. Here’s how to change your computer’s wired network adapter from automatic (DHCP) to fixed (static):
- Windows 10
- Right-click the Windows start icon in the lower left of the screen then click Network Connections.
- Click on Change adapter options.
- If you have a wireless internet connection active, right-click on the icon and temporarily disable this connection for best results.
- Double-click your active LAN (Ethernet) connection then select Properties. This opens the Local Area Connections Properties window.
- Local Area Connections Properties (Windows)
- In the Networking tab, highlight the Internet Protocol Version 4 (TCP/IPv4) or Internet Protocol (TCP/IP) item, and click Properties.
This opens the Internet Protocol (TCP/IP) Properties window. - In the General tab, click Use the following IP address, and enter:
IP చిరునామా: 192.168.1.100
సబ్నెట్ మాస్క్: 255.255.255.0
Default gateway: Leave blank
NOTE: We recommend 192.168.1.100 as the standard IP address; however, you may need to use a different address if you are using a local switch already using this address - Leave the Use the following DNS server addresses fields blank
- సరే క్లిక్ చేయండి.
- Click OK to close each window . If there is no OK button, click on the Close box (X) to close the windows. NOTE: to change your computer back to DHCP follow the same process but select “Obtain an IP address automatically” from the General network page.
- In the Networking tab, highlight the Internet Protocol Version 4 (TCP/IPv4) or Internet Protocol (TCP/IP) item, and click Properties.
- Mac OS X
- Click the Apple icon in the upper left hand corner of your screen.
- Click the System Preferences option.
- In the Internet & Network section click the Network icon.
- Select the network connection you use to connect to the internet — the one that has a green dot in front of it. The green dot means the connection is active.
- Click the Configure button which is close to the bottom of the screen.
- Click the Configure IPv4 drop down box and select the Manually option.
- నమోదు చేయండి:
IP చిరునామా: 192.168.1.100
సబ్నెట్ మాస్క్: 255.255.255.0
Router: Leave blank
NOTE: We recommend 192.168.1.100 as the standard IP address; however, you may need to use a different address if you are using a local switch already using this address. - Click Apply Now.
ఇన్స్టాలర్ సహాయం: www.boxlight.com
The FrontRow alert notification feature is not intended to nor can it prevent emergencies. FrontRow Calypso LLC, its agents, employees, subsidiaries, affiliates and parent companies are not responsible for individual applications of the alert notification feature or related equipment, and shall be exempt from liability for any loss, damage, injury or other consequence arising directly or indirectly from said application. In the event of misuse or malfunction of the equipment or any of its components or features, FrontRow Calypso LLC, its agents, employees, subsidiaries, affiliates or parent companies shall be exempt from liability for any loss, damage, injury or other consequence arising directly or indirectly therefrom.
© 2025 Boxlight © 2025 FrontRow Calypso LLC Phonic Ear, FrontRow, Calypso and the names of Phonic Ear, Calypso, and FrontRow products are
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frontrow CM900 Classroom Communication System [pdf] ఇన్స్టాలేషన్ గైడ్ CM-900, CM900 Classroom Communication System, Classroom Communication System, Communication System |