Comtech EF Data CDM-840 Specifications download pdf (Page 144)

CDM-840 Remote Router Revision 2

Ethernet-based Remote Product Management MN-CDM840

6–76

Modem

• Unit Name – The product (e.g., CDM-840) is identified here.

• System Contact / System Location – Comtech EF Data Customer Support e-mail and

telephone contact information is provided here.

Enter the desired information. Click [Submit] to save.

• Set Time (hh:mm:ss) – Use HH:MM:SS format (where HH = hour [00 to 23], MM = minutes

[00 to 59], and SS = seconds [00 to 59]) to enter a time.

• Set Date (dd/mm/yy) – Use the European time format DD/MM/YY (where DD = day [01 to

31], MM = month [01 to 12], and YY = year [00 to 99]) to enter a date.

Set the Time and Date. Click [Submit] to save.

• Circuit ID – Enter a Circuit ID string consisting of 4 to 24 characters, and then click [Submit]

to save.

• G.703 Clock Extended Mode (CDM-840 only) – Use the drop-down list to select this

operating mode as Off or On, and then click [Submit] to save.

• 10 MHz Internal Adjustment – Enter a value from -999 to (+)999 to set the adjustment for

the Internal 10 MHz High Stability Reference, and then click [Submit] to save.

• Test Mode – Use the drop-down list to select the operating mode:

Mode Description

Normal Mode This mode clears any test modes or loopbacks, and places the unit back into an operational state.

Tx CW

This

test mode forces the modulator to transmit a pure carrier (unmodulated).

Tx Alt 1/0

This test mode forces the modulator to transmit a carrier modulated with an alternating 1,0,1,0

pattern, at the currently selected symbol rate. This causes two discrete spectral lines to appear,

spaced at +/- half the symbol rate, about the carrier frequency. Use this mode to check the carrier

suppression of the modulator.

Select the desired Test Mode. Click [Submit] to execute.

Save/Load Configuration

This section allows you to save, and then load (recall) up to 10 configuration sets:

• To save a configuration set:

o First, adjust all operational configuration parameters to suit.

o Then, use the top (Save) Select Location dropdown to select 1 through 10.

o Finally, click [Save Configuration] to store the configuration settings.

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Comtech EF Data CDM-840 Specifications Page 144