Table of Contents

CEFD CDM-625A Serial

The CEFD CDM-625A Serial is a serial connector intended to communicate with CDM-625A Comtech devices. The connector is based on the CDM 625 serial connector (version 3.0.0.3), but contains certain additions.

About

The connector layout has been configured to look as much like the web interface of the device as possible. The layout is also very similar to that of the 625A SNMP connector. However, as certain parameters cannot be retrieved using serial commands even though they are available in the MIB, these parameters are not available in this version of the connector.

This connector will export different connectors based on the retrieved data. A list can be found in the section "Exported Connectors" below.

Version Info

Range Key Features Based on System Impact
1.0.0.x Initial version - -
1.0.1.x [SLC Main] Cassandra compliant - -

Product Info

Range Supported Firmware Version
1.0.0.x 1.4.1
1.0.1.x 1.4.1

System Info

Range DCF Integration Cassandra Compliant Linked Components Exported Components
1.0.0.x No No - See table below.
1.0.1.x No Yes - See table below.

Exported Connectors

Exported Connector Description
CEFD 625A Serial.FSK BUC/LNB-specific information.

Installation and configuration

Creation

During element creation, you must fill in the device IP address and the port.

The device bus address does not have to be filled in by default and is 0000. However, if the device responds with "TIMEOUT" messages instead of valid responses, you may need to set the bus address to another value (between 1 and 9999), corresponding to the bus address of the device.

Usage

General

This page provides an overview of the most important parameters of the device, divided into two sections.

The System Information section contains the following parameters:

  • Model Number
  • Hardware Revision: The modem hardware revision, in the format xx.y, where xx indicates the main (bottom) card, and y indicates the top (modem) card.
  • Software Revision
  • Serial Number

The Device Overall Status section contains the following parameters:

  • Unit Alarm: Modem unit faults.
  • Tx Traffic Alarm: Modem TX traffic faults.
  • Rx Traffic Alarm: Modem RX traffic faults.
  • Offline Unit Status: Provides access to the fault status information of the offline modem. This is the only way to interrogate the status of an offline modem at the distant end of a link.
  • Unit Test Mode
  • EDMAC Framing Mode
  • Temperature: The internal temperature of the modem.
  • Remote control: Defines whether the unit is being controlled locally, remotely or via IP, and allows you to configure the serial remote control parameters baud rate, I.O. format, and address. (Not available in SNMP [1.0.0.1] version of the protocol.)
  • Fast OGC Polling: Toggles the polling speed for OGC commands between normal (15 minutes) and fast (30 seconds.) (Not available in SNMP [1.0.0.1] version of the protocol.)

Admin - Firmware

This page displays information about the base modem firmware and Packet Processor firmware (if available). The page also allows you to select the firmware version that will be used after the next reboot of the modem.

Admin - FAST

The CDM-625 has a number of optional features that may be activated after the unit's purchase. Fully Accessible System Topology (FAST) access codes are register-specific, unique authorization codes that can be purchased from Comtech EF Data.

This page provides three sections with parameters related to this:

  • Equipment ID: This read-only section displays the operational status for a number of FAST-enabled features.
  • Hardware: This list displays the installed and presently operational FAST-enabled features as well as non-installed FAST-enabled features that are available for purchase and activation from Comtech EF Data. Slot 1 and 2 have been replaced by future expansions and slot 5 (RAN Optimizer card) is no longer in the MIB. Three extra options are also displayed: Carrier ID, Audio Chips and CnC Activation. Note that some information about options is only available in the SNMP version of this connector.
  • Demo: Displays whether Demo Mode is enabled, and the Demo Time remaining.

Config - Modem

On this page, you can configure operating (Tx/Rx) parameters of the modem:

  • Tx/Rx Interfaces and Framing: The Tx/Rx Interface Types and Framing Modes have higher priority than other parameters. You should therefore configure these before setting other parameters.
  • Tx/Rx Operating Parameters: In version 625A of the connector, the Tx Filter Rolloff Factor has extra values, and the Rx Alpha value can be set. In the SNMP version, this can be selected via a separate parameter; however, in the serial version, this is grouped with the Receive Equalizer parameter.

Config - LAN - IP

Use this page to configure LAN IP-related parameters.

The Network Configuration section consists of the following parameters:

  • IP Gateway: The IP address of the default gateway. Applicable only if Working Mode is set to Managed Switch.
  • Traffic/Mgmt IP Address (and subnet mask): Can be used to configure the modem's IP addresses.
  • MAC Address: The MAC address of the Ethernet port. This parameter is read-only and cannot be changed.
  • MAC Learning: Applicable only if Working Mode is set to Managed Switch. Use the drop-down menu to set MAC Learning to On or Off.
  • WAN Buffer Length: Enter a value between 20 ms and 400 ms, in 20 ms increments.
  • L2 QoS (Layer 2 QoS): Use the drop-down menu to set this feature to Off, VLAN only, Port only, or VLAN & Port.
  • L3 QoS (Layer 3 QoS): This feature is only operational when the optional IP Packet Processor card is installed and enabled. Use the drop-down menu to set the L3 (Advanced) QoS to Off, Max/Priority, Min Max, or DiffServ.
  • Dedicated Management Port: This feature is available if Working Modes is set to Managed Switch, but it is unavailable when VLAN Mode is Enabled or when the optional IP Packet Processor is Enabled. Use the drop-down menu to set Port 1, Port 2, Port 3, or Port 4 as the dedicated management port. If Port 1 (2, 3, 4) - Local Only is selected, management is restricted to LAN only. Note that when the optional IP Packet Processor is Enabled, the drop-down menu displays Disabled. When VLAN is Enabled, the drop-down menu displays all previously described options, but it will not be possible to select any of them.
  • 2048 Ethernet Frame Size: This feature is only supported on modems with hardware revision 2.X or higher. Use the toggle button menu to set this feature to Disabled or Enabled.
  • Working Mode: Use the drop-down menu to set the Working Mode to one of the following options: Managed Switch, Router Point-to-Point, Router Multipoint Hub and Router Multipoint Remote.

In the Per Port Configuration section, you can set parameters for each port (Port 1 to Port 4):

  • Port Speed: Use the drop-down menu to select the speed for each selected port: Auto, 100 Full-Duplex, 100 Half-Duplex, 10 Full-Duplex, or 10 Half-Duplex.
  • Pause Flow Control: Set Pause Flow Control for the port to Off or On.
  • Port Mode: Set the Native Mode for the port to Trunk or Access.
  • PVID: When Native Mode is Enabled, a PVID (Native VLAN ID) may be assigned to the selected port using a value range of 0001-4095.
  • Priority: Use the drop-down menu to set the operational priority of the selected port, in the order of preference (from 1 to 4).
  • Actual Negotiated Port Speed: This is the status of the currently operating actual speed and duplex. If the port is not connected, "Link Down" is displayed.

VLAN Mode: This mode is supported if Working Mode is set to Managed Switch, with or without the optional IP Packet Processor enabled. The VLAN Mode section contains the following parameters:

  • VLAN Mode: Set the mode to Disabled or Enabled.
  • Management VLAN ID: A management VLAN ID can be assigned to the selected port using a value range of 0001-4095.

Below this, you can find the VLAN Table, which contains the following parameters:

  • VLAN ID: This read-only parameter reflects the ID value assigned in the Per Port Configuration Table (i.e. any ID has a value range of 0001-4095).
  • Port 1 to Port 4: Use the drop-down menu to set the port to Untagged, Tagged, or Filtered.
  • VLAN Row Status: You can use the button to Delete the active ID.
  • Create VLAN: Allows you to create a new VLAN ID.

Config - Overhead

The use of this page depends on whether Carrier-in-Carrier Automatic Power Control (CnC-APC) mode is selected. Use this page to configure the following overhead interfaces:

  • ESC section: Includes the Tx/Rx IDR Esc Type, Audio Volume and High Rate ESC.
  • AUPC: Includes the AUPC Rem Demod Unlock Action, AUPC ACM Tx Power Max Increase and AUPC ACM Mode. These parameters can only be used when the Transmitter is in IP-ACM mode.
  • EDMAC Framing Mode and Slave Address
  • CnC-APC (page button): Carrier-in-Carrier Automatic Power Control - when enabled/activated. This version of the connector contains additional parameters compared to the SNMP version.
  • IDR Backward Alarms (page button): For Tx 1-4 and Rx 1-4 alarms.

Config - Utilities

Use this page to configure a number of the utility functions of the device:

  • Redundancy: If the unit is part of a 1:1 redundant pair of modems and it is currently online, click Force 1:1 Switch to switch the unit to standby.

  • Re-Center Buffer: Click Re-Center Buffer to force the re-centering of the Plesiochronous/Doppler buffer.

  • Unit: Use the drop-down menus provided in this section to configure the Unit Test Mode, RTS/CTS Control, HSSI Handshake Control and Remote Control (Local/Distant in SNMP version) mode. Reboot the device using the Soft Reboot button. Modem Emulation is a feature that can only be configured using the serial version of the connector. The emulation mode cannot be set using SNMP.

  • Clocks: Use the drop-down menus provided in this section to configure Tx/Rx Clock Sources, Rx Buffer Size, External Clock, External Frequency Reference and G.703 Clock Extended Mode/Interface. Note that here the serial version does not contain some parameters that can be found in the SNMP version, such as Rx Clock External and Rx External Clock Type.

  • Circuit ID: Enter a Circuit ID string of up to 40 characters. The Circuit ID, as created here, appears in the title bar of compatible web browsers for easy unit identification. A carrier ID can also be enabled or disabled.

  • BERT Config: Use the drop-down menus provided in this section to set the Bit Error Rate Test for Tx or Rx to On or Off, configure the pattern for Tx or Rx, and set Error Insertion to either Off or 10E-3.

  • Date and Time:

    • RTC Date: Enter a date using MM/DD/YY format (where MM = month [01 to 12], DD = day [01 to 31], and YY = year [00 to 99]).
    • RTC Time: Enter a time using HH:MM:SS format (where HH = hour [00 to 23], MM = minutes [00 to 59], and SS = seconds [00 to 59]).
    • Time Sync: Time sync-related parameters.

  • Warm-Up:

    • Warm Up Delay: Warm-up delay for internal frequency reference (OCXO). Can be set to Disabled (instantly on: no delay for OCXO to reach temperature) or Enabled (unit waits until OCXO reaches correct temperature).
    • Warm Up Countdown: The warm-up delay countdown remaining (in seconds).
    • Truncate Delay: Used to truncate the warm-up delay period to zero, forcing the unit into "instant-on" mode.

  • BERT Monitor: This read-only section displays the ongoing BERT. Click Restart to restart the BERT monitor.

  • Save / Load (save takes precedence over load):

    • Configuration Save / Configuration Load: Use the drop-down menus to save or load up to 10 different modem configurations, 0 through 9.
    • In the serial version of the connector, the page button Configuration slots, which shows the available configuration slots, is not available.

Config - Drop and Insert

On this page, you can configure the Drop and Insert functionality. The appropriate parameters should be set according to the framing mode selected on the Config - Modem page. Note that this page is different from the equivalent page in the SNMP version of the connector.

Config - BUC / LNB

When a Block Up Converter (BUC) and a Low Noise Block Down Converter (LNB) are installed, use this page to configure the relevant operating parameters and to view the BUC and LNB status for L-band operation.

In the BUC Configuration section, you can configure the following parameters:

  • BUC Power Enable, 10 MHz Ref Enable, and Output Power Enable: Use the drop-down menus to turn these functions On or Off.
  • BUC Low and High Current Limit: Assign a value (in mA) ranging from 0 to 4000.
  • Tx LO (Low Oscillator) Frequency: Assign a value (in MHz) to the Tx LO frequency, and then use the toggle button to designate the value as a HIGH (+) or LOW (-) limit.
  • BUC Address: Assign a value for the BUC address, from 1 to 15.

Below this, the BUC Status parameter shows the status of the BUC.

In the LNB Control section, you can configure the following parameters:

  • LNB DC Power: Use the drop-down menu to either set this to Off or choose the appropriate voltage.
  • LNB Reference Enable: Use the toggle button to turn this function On or Off.
  • LNB Low and High Current Threshold: Assign a value (in mA) ranging from 0 to 500.
  • Rx LO (Low Oscillator) Frequency: Assign a value (in MHz) to the Rx LO frequency, and then use the drop-down menu to designate the value as a HIGH (+) or LOW (-) limit.

Below this, the LNB Status parameter shows the status of the LNB.

Config - ANT

On this page, you can configure PTP and SNTP operating parameters.

The following PTP parameters can be configured:

  • PTP Feature: Set PTP operation to Enabled or Disabled.
  • PTP Grandmaster: Use the drop-down menu to configure to which side (either the LAN port or the WAN port) the PTP grandmaster is connected.

The following SNTP parameters can be configured:

  • Primary Server: Set the IP address of the primary server.
  • Backup Server: Set the IP address of the backup SNTP server.
  • Enable SNTP: Allows you to enable/disable the SNTP feature.

Config - MEO

On this page, you can view and set different MEO (Medium Earth Orbit) parameters, as well as configure Antenna Handover.

Status - Modem Status

This page displays status information pertaining to Alarms, Rx Parameters, AUPC, CnC (Carrier in Carrier), ACM, General Status and Fractional CnC Counters.

Status - Modem Logs

Use this page to configure how the fault, statistics, and alarm masking parameters are processed by the unit.

The Events Log section contains the following parameters:

  • Poll Event Table: Enable or Disable the polling of the events table.
  • Events Overview: An overview of all events that have occurred.

The Statistics Log section contains the following parameters:

  • Statistics Interval: The interval at which the statistics are logged.
  • Statistics Overview: The table showing the statistics.

Finally, the Alarm Masking page button opens a subpage where you can use the available option buttons to define an alarm as Masked or Active.

ODU / Redundancy

Use this page to enable or disable communication with CSAT/KST ODUs for 70/140 MHz operation or LPOD BUCs for L-band operation, and to set up redundancy.

In the ODU section, you can use the ODU Comms parameter to set the ODU operation to Disabled or Enabled.

In the Redundancy section, you can configure the following parameters:

  • Redundancy Traffic IP Address and Network Prefix: Enter the IP address and subnet mask in the format XXX.XXX.XXX.XXX and YY.
  • Redundancy 1:N Mode (Use with Caution): Use the drop-down menu to set 1:N Redundancy mode to Disabled or Enabled.
  • Packet Processor Redundancy: When the optional IP Packet Processor card is installed and enabled in a 1:1 redundancy configuration, there is no need to use the toggle button here, as Packet Processor Redundancy is then enabled automatically.

When redundant modems are used and the selected unit is currently the online unit, click Force 1:1 Switch to force a switchover so the unit will then be in offline (standby) mode. This command is only valid for the online unit in a 1:1 pair.

Finally, the Redundancy State and Offline Unit Status allow you to monitor the redundancy setup - both the status of the active modem (i.e. Online or Offline) and the detected presence of a redundancy switch.

Note that the SNMP version also contains the New redundancy status, with more information than the Redundancy State parameter, but this is not available in the serial version of the connector.

FSK

On this page, you can access the FSK functionality, which is used for the creation of virtual elements:

  • FSK Enabled: Enable or disable the FSK functionality.
  • FSK Element Name: The name used to represent the element.

Web Interface

Use this page to access the web interface provided by the web server of the device. Note that the client machine has to be able to access the device, as otherwise it will not be possible to open the web interface.

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