Comtech EF Data SMS-451 - Manual (Page 29)

SMS-451 Satellite Switch Revision 0
Installation MN/SMS451.IOM
2-3
2. Connect the “RX IF COM” BNC connector on the rear panel to the customer
equipment RX IF input.
3. Connect
the “A” BNC to the prime modem RX IF input (cable provided).
4. Connect
the “B” BNC the backup modem RX IF input (cable provided).
5. Connect
the “TX IF COM” BNC connector on the rear panel to the customer
equipment TX IF output.
6. Connect
the “A” BNC to the prime modem TX IF output (cable provided).
7. Connect
the “B” BNC the backup modem TX IF output (cable provided).
8. Connect
the “RX DATA COM” BNC connector on the rear panel to the
customer equipment RX DATA input.
9. Connect
the “A” BNC to the prime modem RX DATA IN (cable provided).
10. Connect the “B” BNC the backup modem RX DATA IN (cable provided).
11. Connect the “TX DATA COM” BNC connector on the rear panel to the
customer equipment TX DATA output.
12. Connect the “A” BNC to the prime modem TX DATA OUT (cable provided).
13. Connect the “B” BNC the backup modem TX DATA OUT (cable provided).
14. Connect the “MODEM FAULT A” 9-pin D connector on the rear panel to the
prime modem TTL fault connector.
15. Connect the “MODEM FAULT B” 9-pin D connector on the rear panel to the
backup modem TTL fault connector.
16. Connect the remote interface connector to the customer remote terminal.
17. Connect AC power to AC 1 and AC 2 with power cables that are provided.
IMPORTANT
If two AC power sources are available, connect AC 1 and the prime modem
to one AC source. Connect AC 2 and the backup modem to the other AC
source.
18. Refer to the appropriate installation and operation manual for installation
instructions for the prime and backup modems. The configurations of both
modems must be set the same.
19. If there is any problem installing the switch, call Comtech EF Data Customer
Support department for troubleshooting assistance.