Comtech EF Data SMS-301 - Manual (Page 40)

Operation SMS-301 Redundancy Switch
3-2 Rev. 3
3.2 Setup and Configuration
Table 3-1 details the default configuration parameters of the 1:1 switch. The 1:1 switch
is returned to this default configuration by performing a hard reset, or upon
failure/corruption of non-volatile memory.
Table 3-1. Default Configuration Parameters
Parameter Condition
Operation Mode Automatic
On-line Modem A
On-line Mod A
On-line Demod A
Switch Mode Independent
Modem Delay 0.0
Mod Delay 0.0
Demod Delay 0.0
Modulators Active
Demodulators Active
Time 12:00:00 AM
Date 7/04/76
Remote Baud Rate 9600 bit/s Even
Remote Address 10
Remote Type EIA-485 (2-wire)
Display Contrast Level 64
Automatic Verify Disable
Modem A Address 1
Modem B Address 2
Modem Baud Rate 9600 bit/s
The following sections detail the minimum modifications necessary to set up a typical
1:1 redundant configuration. In the following setup descriptions, it is assumed Modem A
connections are to the prime modem. While proper switch operation does not require
Modem A to be the prime modem, it should be noted that upon loss of prime power to
the 1:1 switch, Modem A is the default signal pass through path.