Comtech EF Data SDR-54A - Manual (Page 27)

SDR-54A Satellite Demodulator Revision 4
External Connectors MN/SDR54A.IOM
3.1.4.1 Data Out Connector (J4) Pinout Jumper Location
The pinout configuration for the Data Out Connector (J4) can be set for:
• Standard (SDR-54A, SDM-51/-52 compatible)
• EIA-530
This is accomplished by removing the cover and positioning the jumper blocks at JP4 and
JP5 to the appropriate positions. Refer to Figure 3-4 for EIA-530 jumper location.
J4
JP3
JP4 JP5
RS232/
RS422
Standard
EIA-530
Pinout Jumper Blocks
Figure 3-4. Data Pinout Jumper Location (JP4/JP5)
3.1.4.2 Data Out Connector (J4)
Refer to Table 3-6 for data interface connector specifications. This table reflects a
non-DEMUX operation.
Table 3-6. Data Interface Connector 25-Pin D Sub
Standard RS-422 EIA-530
DB25M (J4)
Pin # Signal Name
DB25M (J4)
Pin#
3 RX Data A (-) 3
4 RX Data B (+) 16
17 RX Clock A (-) 17
18 RX Clock B (+) 9
CD/RR A (-) 8
20 CD/RR B (+) 10
DM A (-) 6
DM B (-) 22
DF 21
7 SIG GND 7
SHLD GND 1
3–5