Comtech EF Data DM240XR User Manual
Page 79
DM240XR High-Speed Digital Modulator
Rear Panel Interfaces
MN-DM240XR– Revision 13
5–9
Table 5-5. M2P RS-422 Parallel - 25-Pin Female
Pin No.
Signal Name
Direction
11
D6+
Input
24
D6-
Input
12
D7+
Input
25
D7-
Input
13
Not Connected
-
5.12.3.2
DVB (Parallel, RS-422)
The DVB Interface is also supported on the DB-25 Female Connector. It complies with RS-422
Electrical Specifications. The pinouts for this connector are given in Table 5-6.
Table 5-6. DVB RS-422 Parallel, 25-Pin Female
Pin No.
Signal Name
Direction
1
Clock +
Input
2
System GND
Ground
3
D7 +
Input
4
D6 +
Input
5
D5 +
Input
6
D4 +
Input
7
D3 +
Input
8
D2 +
Input
9
D1 +
Input
10
D0 +
Input
11
DVALID +
Input
12
PSYNC +
Input
13
Cable Shield
Input
14
Clock -
Input
15
System GND
Ground
16
D7 -
Input
17
D6 -
Input
18
D5 -
Input
19
D4 -
Input
20
D3 -
Input