User Manual

CompactRF

Operating Manual: Chapter 4 Configuration 23

Only one Master can exist

for each network.

AT Menu

Handshaking &K A

This command controls the handshaking between the modem and host

microprocessor.

&K0 Disable handshaking

&K2 RTS/CTS input data framing. See page 33 for details.

*&K3 Enable hardware handshaking (RTS/CTS)

AT Menu

DSR (Data Set Ready) &S O

This command controls the DSR line for the modem, and determines when

it is active

&S0 DSR is always ON

*&S1 DSR is ON in Data Mode, OFF in Command Mode

AT Menu

Operating Mode S101 1

The Operating Mode (register S101) partly defines the “personality” of the

CompactRF

module. Allowable settings for this register are 1 through 4

as follows:.

• S101=1 Master Point to Multipoint

• S101=2 Master Point to Point

• S101=3 Slave

• S101=4 Repeater

The default for this register depends on which factory default is selected as

shown below:

• Default for Factory Setting &F1 is 1 (Master Point-to-Multipoint)

• Default for Factory Setting &F2 is 3 (Slave)

• Default for Factory Setting &F3 is 4 (Repeater)

• Default for Factory Setting &F4 is 3 (Slave)

1)Master - Point to Multipoint. In any given network, there

is always only one Master. All other units should be configured as either

Slaves or Repeaters. When defined as a Point-to-Multipoint Master, the

modem broadcasts data to all Slaves and Repeaters in the network, and is

also the ultimate destination for data transmitted by all Slaves and

Repeaters. In addition, the Master defines the following network parameters

to be utilized by all other modems in the network (See the appropriate

sections for a complete description of these parameters):

n Maximum Packet Size (S112)

n Minimum Packet Size (S111)

n Link Handshaking (S122)

n Wireless Link Rate (S103)

n Hop Interval (S109)