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Chapter 5: Configuration
Table 5-2 (continued). S Register settings.
y < command
command name > x Description
S101
(continued)
Operating Mode
(continued)
SLAVE: Interfaces with remote devices and communicates with Master either directly
or via Repeater(s). Communication between 2 or more Slaves is possible—through
the Master—see S133 and Sections 5.3 and 5.4.
Values:
0 Master
1 Repeater
2 Slave
NOTES:
A “Remote” (non-Master) modem is either a Repeater or a Slave.
If a Repeater is not being used as a Repeater/Slave (i.e. there is no device attached
to its local data port), leave its handshaking OFF (&K0) and set the serial baud rate
(S102) to 115200 bps.
S102
Serial Baud Rate
The serial baud rate is the rate at which the modem will communicate with the
attached local asynchronous device.
Values (bps):
0 230400 8 7200
1 115200 9 4800
2 57600 10 3600
3 38400 11 2400
4 28800 12 1200
5 19200 13 600
6 14400 14 300
7 9600
NOTE: Most PCs do not readily support serial communications greater than
115200 bps.
S103
Wireless Link Rate
This register determines the rate at which RF communications will occur over a given
network. All modems within a particular network must be configured with the same
wireless link rate. Faster link rates result in greater throughput; however, for each
“step” increase in link rate, there is an approximately 1 dB reduction in sensitivity.
Values:
0 19200*
1 115200** MDR100A-R5 or MDR112A-R5**
2 172800**
3 230400**
8 1.2 Mbps***
* MDR100A-R5 or MDR112A-R5 (Slow)
** MDR100A-R5 or MDR112A-R5(Fast)
*** MDR100A-R5 or MDR112A-R5/T (Turbo)
NOTE: Change the default value for the Network Address to something unique for
your network. Do this for an added measure of security and to differentiate
your network from others that may be operating nearby.
