Product specifications

CDM-710 Broadcast Satellite Modem Revision 11
Rear Panel Connectors and Pinouts MN/CDM710.IOM
3–2
Table 3-1. Modem Rear Panel Connectors
Connector Group Ref Des / Name Connector Type Function
IF
Sect. 3.2
J1 Tx
CDM-710 (70/140 MHz band):
BNC female
IF Output
CDM-710L (L-Band):
Type ’N’ female
J3 Rx
CDM-710 (70/140 MHz band):
BNC female
IF Input
CDM-710L (L-Band):
Type ’N’ female
Terrestrial Data
Sect. 3.3
J4 Ethernet RJ-45 Female 10/100 BaseT Remote Interface
J6 SerDes
(Initially-released chassis only
Note 1
)
RJ-45 Female Private communications link
J6 Async Channel (non-operational)
(Rev A and later chassis only
Note 2
)
9-pin Type ‘D’ female
Asynchronous Engineering
Channel
Utility
Sect. 3.4
P1 Alarms 15-pin Type ‘D’ male Form C Alarms (relay closures)
P2 Remote 9-pin Type ‘D’ male Serial Remote Interface (RS232/485)
J7 Ext Ref
(Initially-released chassis only
Note 1
)
SMA Female External Reference Input
J7 Ext Ref
(Rev A and later chassis only
Note 2
)
BNC female External Reference Input
Power/Ground
Sect. 3.5
AC IEC Chassis prime power input
DC (Optional) Terminal block Chassis prime power input
Ground #10-32 stud Common Chassis Ground
Notes:
1. The initially released chassis is Tx only and does not support 1:1 operation. It does not support
1:N operation and is not upgradeable. This chassis is also not upgradeable to Rx only or duplex
operation.
2. The Rev. A and later chassis is required for 1:1 or 1:N operation. It supports Tx Only, Rx
Only, and Duplex operation
The European EMC Directive (EN55022, EN50082-1) requires using properly shielded cables for
DATA I/O. These cables are double-shielded from end-to-end, ensuring a continuous ground shield.