MPM-1000A Operator Manual
1000-7075 Rev E
14-13
Table 14-
12 Terminal Devices Interface (cont’d)
CONN
Signal Name
Input/Output
Signal Description
Pin
J6
CNTRL TX
DATA 2A
Output
Not used in unbalanced mode; Positive node of
HD RS-485; TXD+ of FD RS-422/RS-485
6
J6
CNTRL TX
DATA 2B
Output
TXD in unbalanced mode; Negative node of HD
RS-485, TXD- of FD RS-422/RS-485
7
J6
CNTRL RX
DATA 2A
Output
Not used in unbalanced mode; Positive node of
HD RS-485; RXD+ of FD RS-422/RS-485
8
J6
CNTRL TX
DATA 2B
Output
RXD in unbalanced mode; Negative node of HD
RS-485, RXD- of FD RS-422/RS-485
9
J6
VOICE RX
CLK B
Output
Terminal B of the balanced RX Clock output
(+/-5V swing)
10
J6
No Connect
N/A
NOT USED
11
J6
No Connect
N/A
NOT USED
12
J6
No Connect
N/A
NOT USED
13
J6
GROUND
N/A
Signal ground
14
J6
GPS RS-422
TX A
Output
RS-422 A
15
J6
GPS RS-422
TX B
Output
RS-422 A
16
J6
GPS RS-232
GND
N/A
Ground
17
J6
GPS RS-232
TX
Output
RS-232
18
J6
GPS RS-232
RX
Input
RS-232
19
J6
GPS RS-232
GND
N/A
Ground
20
J6
GPS RS-422
RX A
Output
RS-422 A
21
J6
GPS RS-422
RX B
Output
RS-422 A
22
J6
GPS RS-422
GND
N/A
Ground
23
J6
GND
N/A
Ground
24
J6
No Connect
N/A
NOT USED
25
J6
No Connect
N/A
NOT USED
26
J6
No Connect
N/A
NOT USED
27
J6
MODEM
CNTRL RX A2
Input
Balanced RS-485
28
J6
GND
N/A
Ground
29
J6
FRAME
STROBE A
Input/Output
RS-422/RS-485
30
J6
FRAME
STROBE B
Input/Output
RS-422/RS-485
31
J6
MODEM
CNTRL RX B2
Input
Balanced RS-485
32
J6
MODEM
CNTRL TX A2
Output
Balanced RS-485
33
J6
MODEM
CNTRL TX B2
Output
Balanced RS-485
34
J6
No Connect
N/A
NOT USED
35
J6
No Connect
N/A
NOT USED
36
J6
GND
N/A
Ground
37