Table 14-10 Scpc Baseband Interface - L3 Communications MPM-1000A Operator's Manual

MPM-1000A Operator Manual
This interface is located on the rear panel J5 connector.
CONN Signal Name
J5 SHIELD
J5 TX DATA A
J5 RX Data A
J5 RTS A
J5 CTS A
J5 DSR
J5 GND
J5 DCD A
J5 RX CLK B
J5 RX CLK B
J5 TX CLK B
J5 SEND TMG B
J5 CTS B
J5 TX DATA B
J5 SEND TMG A
J5 RX DATA B
J5 RX CLK A
J5 No Connect
J5 RTS B
J5 DTR A
J5 DTR B
J5 No Connect
J5 GND
J5 TX CLK A
J5 No Connect

Table 14-10 SCPC Baseband Interface

Input/Output
Input SHIELD
Input Balanced, RS-422 Tx Data signal terminated with
100 ohms
Output Balanced, uni-polar RS-422 Rx Data signal
Input Balanced, RS-422 Request-To-Send signal or
unbalanced RS-423
Output Balanced, uni-polar RS-422 Clear-To-Send signal
Output Unbalanced, bi-polar RS-423 Data Set Ready
signal. The functionality of this control signal is not
currently implemented.
N/A Ground
Output Balanced, uni-polar RS-422 Data carrier Detect
signal
Output Balanced, uni-polar RS-422 Rx Clock signal
Output Balanced, uni-polar RS-422 Data Carrier Detect
signal
Input Balanced RS-422 Tx Clock signal, 100 ohms
between Terminals A and B
Output Balanced , uni-polar RS-422 Tx Send Timing
Output Balanced, uni-polar RS-422 Clear-To-Send signal
Input Balanced, RS-422 Tx Data signal terminated with
100 ohms
Output Balanced, uni-polar RS-422 TX Send Timing
Output Balanced, uni-polar RS-422 Rx Data signal
Output Balanced, uni-polar RS-422 Rx Clock signal
N/A NOT USED
Input Balanced, RS-422 Request-To-Send signal or
ground for unbalanced RS-423 interface
Input Balanced, RS-422 Data Terminal Ready signal for
unbalanced RS-423.
control signal is not currently implemented
Input Balanced, RS-422 Data Terminal Ready signal or
ground for unbalanced RS-423. The functionality
of this control signal is not currently implemented
N/A NOT USED
N/A Ground
Input Balanced RS-422 Tx Clock signal,
between Terminals A and B
N/A NOT USED
14-10
Signal Description
The functionality of this
1000-7075 Rev E
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
100 ohms 24
25