Specifications

SDM-300L3 Satellite Modem Revision 0
Connector Pinouts MN/SDM300L3.IOM
3–9
Table 3-7. 50-Pin Connector Pinouts
50-Pin D Connector
Pin # IDR IBS Async D&I
1 GND GND GND GND
2 GND GND GND GND
3 AGC Out AGC Out AGC Out AGC Out
4 EIA-422 TXOctA In ESC TXDB In (EIA-485 only)
5 EIA-422 TXOctB In ESC TXDA In
(EIA-232 only)
ESC TXDA In
(EIA-485 and EIA-232)
ESC TXD In
(EIA-232 only)
6 EIA-422 RXOctA Out ESC RXDB Out
(EIA-485 only)
7 EIA-422 RXOctB Out ESC RXDA Out
(EIA-232 only)
ESC RXDA Out
(EIA-485 and EIA-232)
ESC RXD Out
(EIA-232 only)
8 BWO1_C EIA-422 RX Oct A
9 BWO2_C EIA-422 RX Oct B
10 BWO3_C PRIMARY_C PRIMARY_C
11 BWO4_C SECONDARY_C SECONDARY_C
12 BWAI 1 V.35/EIA-422 SCTE/TT-A V.35/EIA-422 SCTE/TT A
13 BWAI 2 V.35/EIA-422 SCTE/TT-B V.35/EIA-422 SCTE/TT B
14 BWAI 3 EIA-422 TX Oct A
15 BWAI 4 EIA-422 TX Oct B
16 Demod Fault C
17 Def Maint Alrm
18 G.703 SDB In G.703 SDB In G.703 SDB In G.703 SDB In
19 EIA-422 ExtClkB In V.35/EIA-422 EXCB In V.35/EIA-422 EXCB In EIA-422 EXCB In
20 G.703 RDB Out G.703 RDB Out G.703 RDB Out G.703 RDB Out
21 EIA-422 8k TClkA Out V.35/EIA-422 ST-A Out V.35/EIA-422 ST-A Out
22 EIA-422 8k TClkB Out V.35/EIA-422 ST-B Out V.35/EIA-422 ST-B Out
23 EIA-422 8k RClkA Out V.35/EIA-422 RT-A Out V.35/EIA-422 RT-A Out
24 EIA-422 8k RClkB Out V.35/EIA-422 RT-B Out V.35/EIA-422 RT-B Out
25 BWO1_NC ESC TCLK Out (EIA-232)
26 BWO2_NC ESC RCLK Out (EIA-232)
27 BWO3_NC PRIMARY_NC PRIMARY_NC
28 BWO4_NC SECONDARY_NC SECONDARY_NC
29 Aud1-B In (or 64SDB) V.35/EIA-422 RTS-B V.35/EIA-422 RTS-B
30 Aud1-B Out (or 64RTB) V.35 RLSD/EIA-422 RR-B V.35 RLSD/EIA-422 RR-B
31 Aud2-B In (or 64STB) V.35/EIA-422 CTS-B V.35/EIA-422 CTS-B
32 Aud2-B Out (or 64RDB) V.35 DSR/EIA-422 DM-B V.35 DSR/EIA-422 DM-B
33 DF
34 G.703 SDA In G.703 SDA In G.703 SDA In G.703 SDA In
35 EIA-422 ExtClkA In V.35/EIA-422 EXCA In V.35/EIA-422 EXCA In EIA-422 EXCA In
36 G.703 RDA Out G.703 RDA Out G.703 RDA Out G.703 RDA Out
37 EIA-422 8k TXDA In V.35/EIA-422 SD-A In V.35/EIA-422 SD-A In G.703 DDO-A Out
38 EIA-422 8k TXDB In V.35/EIA-422 SD-B In V.35/EIA-422 SD-B In G.703 DDO-B Out
39 EIA-422 8k RXDA Out V.35/EIA-422 RD-A Out V.35/EIA-422 RD-A Out G.703 IDI-A In
40 EIA-422 8k RXDB Out V.35/EIA-422 RD-B Out V.35/EIA-422 RD-B Out G.703 IDI-B In
41 BWO1_NO ESC DSR (EIA-232)
42 BWO2_NO
43 BWO3_NO PRIMARY_NO PRIMARY_NO
44 BWO4_NO SECONDARY_NO SECONDARY_NO
45 Aud1-A In (or 64SDA) V.35/EIA-422 RTS-A V.35/EIA-422 RTS-A
46 Aud1-A Out (or 64RTA) V.35 RLSD/EIA-422 RR-A V.35 RLSD/EIA-422 RR-A
47 Aud2-A In (or 64STA) V.35/EIA-422 CTS-A V.35/EIA-422 CTS-A
48 Aud2-A Out (or 64RDA) V.35 DSR/EIA-422 DM-A V.35 DSR/EIA-422 DM-A ESC DSR (EIA-232 only)
49 MF
50 Demod Fault NO