Requesting Information On Received Signal Strength - Comdial DXP Plus Manual

Troubleshooting The DXPT1 Installation
4.3

Requesting Information On Received Signal Strength

When you use this request, you are asking the system to provide the signal strength of its received signals.
Upon making the received signal strength request, the system supplies you with the following information:
•
the range in dB of the received signals.
4.3.1 Setting The DIP Switches For Received Signal Strength Information
Set the DIP switches as shown in the following table. Switch 1 is the top switch. When the switch is
moved to the right, it is turned on. The hex code shown is used for remote operation only.
SWITCH SETTINGS
1 2 3
ON ON ON ON ON ON ON ON
4.3.2 Reading The Received Signal Strength Information From The LEDs
The Table below shows the received signal strength information that is revealed by the LEDs. LED 1 is at
the top.
1 2 3
LEDs 1 through 4
not used (off)
NOTE: If signal is very weak from a long span of a mile or more, and frame synchronization is not being
maintained, turn DIP switch LIU-1 on.
4 5 6 7 8 Provide the dB range of the received signal
LEDs
4 5 6 7
OFF OFF OFF ON
OFF OFF ON ON
OFF ON ON ON
ON ON ON ON
TYPE OF REQUEST
strength.
LED DEFINITIONS
8
-7.5 to -15 dB (medium signal)
-15 to -22.5 dB (weak signal)
-22 dB and below (spec is to -26 dB)
(very weak)
0 to - 7.5 dB (strong signal)
Throubleshooting The DXPT1 Installation – 15
IMI89–207
HEX
CODE
FF
^
HEX
CODE
^
01
03
07
0F