Comtech EF Data CDM-760 - Manual (Page 183)

Ethernet-based Remote Product Management Revision 2
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
7–25
Typical for the Slot1 and Slot2 page sections, when a PIIC module is present in either or both
slots:
G.703 Configuration
• Use the Interface Type drop-down list to select None, E3, T3, or STS1.
• Use the Tx Clock Source drop-down list to select Tx Clock, Ext Clock, or Rx Sat.
Comtech EF Data strongly recommends that you select Tx Clock unless a high
stability External Clock is present and timing of the network requires all devices
to be locked to the External Clock.
• Use the Rx Clock Source drop-down list to select Tx Clock, Ext Clock, Rx Sat, or Int Clock.
Comtech EF Data strongly recommends that you select Rx Sat unless a high
stability External Clock is present and timing of the network requires all devices
to be locked to the External Clock.
• Use the External Clock drop-down list to set the expected source clock rate (via the CDM-
760 rear panel J8 | EXT REF connector) as 1 MHz, 2 MHz, 5 MHz, 10 MHz, 20 MHz, 34.368
MHz, 44.736 MHz, or 51.85 MHz.
• Enter an Rx Buffer Size (ms) buffer size, from 2 ms to 75 ms, in 0.5 ms steps.
Click [Configure PIIC] to save.
OC3 Configuration
• Use the Interface Type drop-down list to select None or OC3.
• Use the Tx Clock Source drop-down list to select Tx Clock or Rx Sat.
Comtech EF Data strongly recommends that you select Tx Clock unless a high
stability External Clock is present and timing of the network requires all devices
to be locked to the External Clock.
• Use the Rx Clock Source drop-down list to select Tx Clock, Int Clk, or Rx Sat.
Comtech EF Data strongly recommends that you select Rx Sat unless a high
stability External Clock is present and timing of the network requires all devices
to be locked to the External Clock.
• Enter an Rx Buffer Size (ms) from 2 ms to 75 ms, in 0.5 ms steps.
Alarm Settings
• Use the Tx Symbol Clock PLL drop-down list to select Alarm, Fault, Mask, or Fault (Tx On).
• Use the Input Signal Loss drop-down list to select Alarm, Fault, Mask, or Fault (Tx On).
• Use the Rx Buffer Clock PLL drop-down list to select Alarm, Fault, or Mask.