Comtech EF Data DM240XR User Manual
Page 78
DM240XR High-Speed Digital Modulator
Rear Panel Interfaces
MN-DM240XR– Revision 13
5–8
5.12.2 ASI Monitor
Incoming data from the active PIIC slot is output on this interface (Figure 5-1d), allowing the
customer to monitor the incoming data stream. The interface complies with DVB ASI Electrical
Specifications.
5.12.3 Parallel RS-422 Interface
This interface supports two terrestrial interface types and complies with RS-422 Electrical
Specifications (Figure 5.1f).
5.12.3.1
M2P (Parallel, RS-422)
M2P is supported on the DB-25 female connector. It complies with RS-422 Electrical
Specifications. Refer to Table 5-5 for pinouts for this connector. The maximum data rate is 238
Mbps.
Table 5-5. M2P RS-422 Parallel - 25-Pin Female
Pin No.
Signal Name
Direction
1
OUTCLK+
Output
14
OUTCLK-
Output
2
CLK+
Input
15
CLK-
Input
3
SYNC+
Input
16
SYNC-
Input
4
VALID+
Input
17
VALID-
Input
5
D0+
Input
18
D0-
Input
6
D1+
Input
19
D1-
Input
7
D2+
Input
20
D2-
Input
8
D3+
Input
21
D3-
Input
9
D4+
Input
22
D4-
Input
10
D5+
Input
23
D5-
Input