Using The Diagnostic Function; Understanding The Diagnostic Switches And Indicators - Comdial DXP Plus Manual

Troubleshooting The DXPT1 Installation
4

Using The Diagnostic Function

The diagnostic function on the DXPT1 board provides a method for obtaining information about the T1
operation. You can do this either on-site or from a remote location by sending and receiving coded
messages. Remote operation is described in section 4.8.
4.1

Understanding The Diagnostic Switches And Indicators

The diagnostic portion of the DXPT1 board contains eight DIP switches, eight green LEDs, and a "clear"
pushbutton for clearing functions. Set the DIP switches to request certain T1 system information. When
testing from a remote location, using a computer and modem, you can similate the switch settings by
sending a coded message.
The system responds to your request for information by
lighting certain LEDs to provide you with the requested
information. If you are testing from a remote location,
the system responds by sending a coded message that
similates the lighted LEDs.
Use the clear pushbutton to stop any counting function
(denoted by the LEDs sequencing) and reset the counter.
The diagnostic port is a monitor mode only access. You
cannot cause harm to the equipment by moving the
switches or pushing the clear pushbutton. Leaving any
of the switches on will not cause any operational
problems.
Since the operation is cryptic, the customer normally
doesn't use the diagnostic monitor. Functions of the port
are to simplify problem solving in the field
4.1.1 Determining Channel Number
The letters ABCDE in switch positions 4 through 8 are
used to designate a channel number in many of the tables used on the following pages. See the table
below for the relationship between the letters ABCDE and channel numbers 1 through 24. (Example, a
DIP switch setting of 10100101 requests trunk assignments on channel 6).
CHANNEL A B
1 OFF OFF
2 OFF OFF
3 OFF OFF
4 OFF OFF
5 OFF OFF
6 OFF OFF
7 OFF OFF
8 OFF OFF
C D E CHANNEL
OFF OFF OFF 9
OFF OFF ON 10
OFF ON OFF 11
OFF ON ON 12
ON OFF OFF 13
ON OFF ON 14
ON ON OFF 15
ON ON ON 16
Clear
Switch 1
Off
Switch 8
DXPT1 Diagnostic Switches And Indicators
A B C D E CHANNEL
OFF ON OFF OFF OFF
OFF ON OFF OFF ON
OFF ON OFF ON OFF
OFF ON OFF ON ON
OFF ON ON OFF OFF
OFF ON ON OFF ON
OFF ON ON ON OFF
OFF ON ON ON ON
Throubleshooting The DXPT1 Installation – 13
LED 1
On
LED 8
T1005
A B C D
17 ON OFF OFF OFF
18 ON OFF OFF OFF
19 ON OFF OFF ON
20 ON OFF OFF ON
21 ON OFF ON OFF
22 ON OFF ON OFF
23 ON OFF ON ON
24 ON OFF ON ON
IMI89–207
E
OFF
ON
OFF
ON
OFF
ON
OFF
ON