Comtech EF Data SDR-54A - Manual (Page 73)

SDR-54A Satellite Demodulator Revision 4
Specifications MN/SDR54A.IOM
8.11 Integrated Demultiplexer Option
8.11.1 2/4 Channel Demux (SP/5231) (Sosoft)
Demultiplexer Type Synchronous, symmetrical data rates on all
tributaries
Number of Tributary Channels 2 or 4, automatic detection
Tributary Data Interface RS-422 or RS-232, 25-pin D-sub
Tributary Data Rate: SP/5231
4-Channel
Mode
2-Channel Mode
Clock
9.6 to 64.0 kbps, 32/129 of aggregate channel
9.6 to 128.0 kbps, 64/129 of aggregate channel
50% duty cycle
± 10%, phase locked to aggregate
channel
Synchronization Indicator TTL, on interface connector (1 = SYNC)
Mode Indicator TTL, on interface connector (0 = 2 channel mode)
8.11.1.1 Tributary Data Output Connector (J4)
Connector type : Dual row (2 x 13), Female.
Tributary Data Output Connector
Signal Function Name Pin #
Trib #1 Data inverting output (RS-422) RXDaT1 1
Trib #1 Data non-inverting output (RS-422) RXDbT1 2
Trib #1 Clock inverting output (RS-422) RXCaT1 3
Trib #1 Clock non-inverting output (RS-422) RXCbT1 4
Trib #2 Data inverting output (RS-422) RXDaT2 11
Trib #2 Data non-inverting output (RS-422) RXDbT2 12
Trib #2 Clock inverting output (RS-422) RXCaT2 16
Trib #2 Clock non-inverting output (RS-422) RXCbT2 17
Trib #3 Data inverting output (RS-422) RXDaT3 18
Trib #3 Data non-inverting output (RS-422) RXDbT3 19
Trib #3 Clock inverting output (RS-422) RXCaT3 20
Trib #3 Clock non-inverting output (RS-422) RXCbT3 21
Trib #4 Data inverting output (RS-422) RXDaT4 22
Trib #4 Data non-inverting output (RS-422) RXDbT4 23
Trib #4 Clock inverting output (RS-422) RXCaT4 24
Trib #4 Clock non-inverting output (RS-422) RXCbT4 25
Demux synchronization indicator (TTL, 1 = SYNC) DMXSYNC 6
Demux mode indicator (TTL, 0 = 2 channel mode) DMXMD 9
Ground GND 13, 26
No Connects 5, 7, 8, 10, 14, 15
8–13