B.1.3.5 Specifications; B.1.3.6 Mechanical Specifications For Connector J1 - Comtech EF Data SDM-100A Installation And Operation Manual

SDM-100A Satellite Modem

B.1.3.5 Specifications

Data Rate
Overhead
Coding
ASYNC Interface Types
Channel Formats

B.1.3.6 Mechanical Specifications for Connector J1

Rev. 0
Terrestrial Interface
ASYNC Interface
Pin # Name
37 SD_A SEND DATA
38 SD_B SEND DATA
35 EXC_A EXT. CLOCK (MC MASTER CLOCK)
19 EXC_B EXT. CLOCK (MC MASTER CLOCK)
39 RD_A RECEIVE DATA
40 RD_B RECEIVE DATA
4 TXD_B TX DATA (ASYNC CHANNEL)
5 TXD_A TX DATA (ASYNC CHANNEL)
21 ST SEND TIMING
22 ST SEND TIMING
23 RT_A RECEIVE TIMING
24 RT_B RECEIVE TIMING
6 RXD_B RX DATA (ASYNC CHANNEL)
7 RXD_A RX DATA (ASYNC CHANNEL)
41 DM_A DATA MODE
32 DM_B DATA MODE
12 TT_A TERMINAL TIMING
13 TT_B TERMINAL TIMING
45 RTS_A REQUEST TO SEND
29 RTS_B REQUEST TO SEND
46 RR_A RECEIVE READY
30 RR_B RECEIVE READY
47 CTS_A CLEAR TO SEND
31 CTS_B CLEAR TO SEND
49 MF MODULATOR FAULT
33 DF DEMODULATOR FAULT
9.6 to 224 kHz
1/16 overhead
BPSK 1/2, QPSK 1/2, 3/4, 7/8
RS-485 or RS-232-C
2-wire or 4-wire
Data bits 5 to 8
Parity = odd, even, or none
Stop bits = 1 and 2, 150 to 2400 baud
Function
Options
B–11