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