Data Interface Pin Connections; Table 2–1 Data Interface Connector J3 Pin Assignment By Signal - Datum Systems PSM-500 Installation And Operation Manual

Installation

2.3.1 Data Interface Pin Connections

The unit is supplied with an electronically programmable data interface assembly. Table 2-1
shows the pin assignments for the possible standard interfaces. Additional information aiding the
creation of "adaptor" cables from the unit's 37-pin female "D" sub connector to other types of
interface connections such as V.35 "Winchester" type connector standard pin-outs or RS-232
type DB25 connector is presented in Appendix C "Cabling Specifications".
Modem RS–449 Signal Name
Pin #
1 Shield (GND)
4 Transmit Data (A) –
22 Transmit Data (B) +
5 Transmit Clock (A) –
23 Transmit Clock (B) +
6 Receive Data (A) –
24 Receive Data (B) +
8 Receive Clock (A) –
26 Receive Clock (B) +
7 RTS (A) –
25 RTS (B) +
9 CTS (A) –
27 CTS (B) +
11 Data Mode (A) –
29 Data Mode (B) +
12 TR (A) –
30 TR (B) +
13 Receive Ready (A) –
31 Receive Ready (B) +
17 Terminal Timing (A) –
35 Terminal Timing (B) +
3 External data Clock
(transmit data clock or
receive FIFO Buffer
output Clock (A) – *(3)
21 External data Clock
(transmit data clock or
receive FIFO Buffer
output Clock (B) + *(3)
19 Signal GND
20 Common
10 Mod Fault Alarm *(2)
Page 2-6
Table 2–1 Data Interface
Connector J3 Pin Assignment by Signal
V.35, V.36 Signal RS-232 Signal Name
Name
Shield (GND) Shield (GND)
SD A (SD-)
SD
SD B (SD+)
SCT A (ST-)
ST
SCT B (ST+)
RD A (RD-)
RD
RD B (RD+)
SCR A (RT-)
RT
SCR B (RT+)
RTS RTS
CTS
CTS
DSR
DCR
DTR DTR
RLSD RLSD
SCTE A (TT-)
TSETT
SCTE B (TT+)
Ext Data/FIFO Clock Ext Data/FIFO Clock
A (-)*(3) A (-)*(3)
Ext Data/FIFO Clock Ext Data/FIFO Clock
B (+)*(3) B (+)*(3)
SIG GND GND
Chassis
Mod Fault Alarm *(2) Mod Fault Alarm *(2)
PSM-500/500L/500LT SCPC Satellite Modem
Eia-530 Signal Name
*(5)
SHD (GND)
TD A
TD B
TTSETC A
TSETC B
RD A
RD B
RSETC A
RSETC B
RTS A
RTS B
CTS A
CTS B
DCR A
DCR B
DTR A
DTR B
RLSD A
RLSD B
TSETT A
TSETT B
Ext Data/FIFO Clock
A (-)*(3)
Ext Data/FIFO Clock
B (+)*(3)
SGND
Mod Fault Alarm *(2)
PSM-500/500L/500L T- Rev. 0.91
Direction
GND (4)
Input
Input
Output
Output
Output
Output
Output
Output
Input
Input
Output
Output
Output
Output
Input
Input
Output
Output
Input
Input
Input
Input
GND
GND
OC TTL
output