Comtech EF Data DMDVR20 LBST Rev 1.1 - Manual (Page 72)

DMDVR20 LBST Satellite Modem Rear Panel Interfaces
TM136 – Rev. 1.1 5-3
6 Demod Fault DF-NO No Direction
*7 Prompt CEF-C No Direction
*8 Prompt CEF-NC No Direction
*9 Prompt CEF-NO No Direction
*10 Service SP1-C No Direction
*11 Service SP1-NC No Direction
*12 Service SP2-NO No Direction
13 No Connection SP2-NC No Direction
14 AGC Out AGC No Direction
15 Ground GND ---
Note: Normally open or Normally closed conditions identified above indicate a faulted stated or
off condition.
*Note: Pins 1 through 6 offers form C contacts for Major Alarm Status on the Modulator and
Demodulator. When the modem is configured for IBS Network Specification, pins 7-9 only
support the IBS Prompt Alarms and pins 10-12 only support IBS Service Alarms. If the Network
specification is configured for Closed Net, the contact closures for Prompt and Service can be
utilized to include the summary of all minor alarms or minor/major alarms. The IBS Prompt
menus can include TX Minor Alarms or TX Minor Alarm and TX Major Alarms. The IBS Service
Alarms can include RX Minor Alarms or RX Minor Alarms and RX Major Alarms.
5.3.5 EXT CLK (J16)
The External Clock Port is a 75-Ohm Female BNC Connector. It allows interfacing to an external
clock source.
5.3.6 ASYNC (J17) (NOT SUPPORTED)
5.3.7 (J18)
Radyne factory use only.