Product specifications

CRS-170A L-Band 1:1 Redundancy Switch Revision 3

Modem and Switch Configuration MN/CRS170A.IOM

6. Connect all cables – including the control cable, IF cable and data cables – to the

modems and the CRS-170A. Additionally, both modems will need an Ethernet connection

to each other through a Layer 2 switch. For detailed information, refer to Chapter 4.

CABLES AND CONNECTIONS.

7. Power up both CDM-7x0s. The modems will now come up in a redundant mode of

operation. Verify that one modem is

ONLINE by the front panel LEDs; also verify that

the

ONLINE LEDs for the CRS-170A indicate the same online state as the modems.

All configuration changes can only be made to the Online CDM-7x0

and will require the user to “

ave Parameters to permanent

storage

” to ensure the configuration change is also applied to the

Backup CDM-7x0.

3.4.2 Non-IP Redundancy Configuration

If the terrestrial data type non Ethernet (i.e. HSSI, G.703), the modem configuration procedure is

as follows:

1. On both modems, set the redundancy to the Enable state:

CONFIG Æ AUX (Redundancy Mode) Æ ENA/DIS set to Enable.

2. Connect all cables – including the control cable, IF cable and data ‘Y’cables – to the modems

and the CRS-170A as directed in Chapter 4. CABLES AND CONNECTIONS.

3–7