Comtech EF Data SDR-54A - Manual (Page 74)

SDR-54A Satellite Demodulator Revision 4
Specifications MN/SDR54A.IOM
8.11.1.2 Aggregate Data/Clock Input and Power Connector (J3)
Connector type: Dual row (2 x 5), Female.
Table 8-9. Aggregate Data/Clock Input and Power Connector (J3)
Aggregate Data Input and Power Connector
Signal Function Name Pin #
Aggregate data input (inverted TTL) /ADAT 1
Aggregate clock input (TTL) ACLK 7
+5V power VCC 9
Ground GND 10
No connects 2, 3, 4, 5, 6, 8
8.12 8-Channel Demux (SP/5839) (Comtech EFData)
8.12.1 Specifications
Table 8-10. 8-Channel Demux Specifications
Aggregate Input:
Type Synchronous (clock/data).
Data/Clock Interface TTL (inverted data). Data valid on rising edge of clock.
Data Rate 4001.3 kbps maximum, the aggregate data rate is the sum of all
tributary data rates plus the multiplex overhead.
Clock 50% duty cycle, ± 10%.
Multiplex Technique Data interleaved time division.
Overhead 1.3 kbps fixed per frame.
Tributary Outputs:
Number of Channels One to eight.
Data Rate 600 bits/second to 4000.0 kbps/second (configurable for each
tributary in 100 bits/second increments).
Notes:
1.
RS-232 maximum data rate is 64.0 kbps.
2. The sum of all tributary data rates plus overhead cannot
exceed the maximum aggregate data rate of
4001.3 kbps/second.
Type Synchronous clock and data.
Data Interface RS-422 or RS-232.
Clock 50% duty cycle, ± 10%, phase locked to aggregate clock input,
0.25 dB maximum jitter gain from aggregate clock input.
Lock Time 1 second maximum after demodulator Carrier Detect (CD).
Operational Bit Error Rate
Performance Will lock and maintain synchronization with BER ≥ 10 -3 .
Input Power 5 VDC, ± 10%, 900 mA maximum.
Environmental:
Operating Temperature -20 ° to +60°C.
Storage Temperature -55 ° to +125°C.
Humidity Up to 95% non-condensing.
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