Comtech EF Data CRS-311 User Manual
Page 94
CRS-311 1:1 Redundancy Switch
Revision 7
Modem, RMI/TMI, and Switch Configuration MN/CRS311.IOM
4–4
Modem has address 0100, and the Redundant Modem uses address 1100. See Figure 4‐2 and
Appendix C. Addressing Scheme Information
for more information.
Once the addressing scheme is understood, proceed as follows:
Step Task
1
Configure COMMs on each modem via the modem front panel menu as follows:
CONFIG Æ REMOTE: RS-485-4W, 9600 baud, format 8-N-1.
2
Set the EIA-485 base address and offset, per Appendix C. Addressing Scheme Information.
See the CDM‐Qx Installation and Operation Manual for detailed configuration information.
Figure 4-2. CDM-Qx/QxL / CRS-311 EIA-485 Scheme
In this example, the EIA‐485 offset address does not affect Modem #1, so the offset
can be 1‐99 without affecting other Modem’s EIA‐485 addresses.