User Manual

CompactRF

Operating Manual: Chapter 4 Configuration 33

AT Menu

RTS/DCD Framing 120 R

DCD Timeout 121 S

The CompactRF

supports two special types of data framing:

• Input (or RTS/CTS) Data Framing; and,

• Output (or DCD) Data Framing

Input Data Framing is enabled by configuring the Handshaking Parameter as

&K2. This type of framing makes use of the S120 parameter as illustrated

in Figure 9. Parameter S120 can be set to any value between 0 and 254 ms.

RTS

CTS

TXD

S120 (ms)

Data going into MHX-910

0 to 1 ms

Figure 9 - Input Data Framing

To enable output (DCD) data framing, set the Data Carrier Detect parameter

as &C2. This type of framing uses both S120 and S121 registers as shown

in Figure 10. Valid ranges for each parameter are 0 to 254 ms.

DCD

RXD

Data leaving MHX-910

S120 (ms) S121 (ms)

Figure 10 - Output Data Framing

AT Menu

RSSI Reading S123 T

This register displays the average signal strength in dBm over the previous

four hop intervals. Valid RSSI readings apply only to units configured as

Slave or Repeater.