ZETRON 2000 Series Especificaciones descargar pdf (Pagina 182)

Troubleshooting and Repair Procedures

182 025-9035AA

Swapping Cards

The technique of swapping cards is a good one for isolating problems. One must be

careful when juggling cards around to avoid creating other problems, though. A few things

to keep in mind are presented here. To swap two cards, just remove the cards and switch

the DIP switch settings. If you are swapping Trunk cards, be sure the “matrix circuit” is set

right.

Front Panel Lights

The front panel lights indicate the status of hardware and software signals in the system

and can give you valuable information when troubleshooting system operation. The chart

below outlines the meaning of the lights labeled SELECT, TEST, TS or T which relate to

communication between the CPU and the microprocessors on the interface cards. As

different parts of the paging software come into action, the lights act in different ways as

outlined in the following table.

Software Step Card Lights Action

Power On CPU T1 - T4,

COM A,

COM B,

MDM, TMP

FLT

All on

CPU Test CPU T1 - T4,

COM A,

COM B,

MDM, TMP

FLT

DMA or EMS

All go on for 20-25 seconds,

then all except FLT go off then

flash on and off once. Finally, all

go dark.

Off for 15-20 seconds, then

flashes.

Reset Cards

(2 seconds)

Trunk

Dual Trunk

Station

TEST1-3, MODEM

TEST1-3

TEST1-3, REQ, DATA

On-Off-On

Firmware sent to cards

(2 minutes)

Trunk

Dual Trunk

Station

SELECT

TEST3

SELECT

TEST3

SELECT

TEST3

Winking

Paging system polling Trunk

Dual Trunk

Station

SELECT, TEST3

SELECT

TEST3

SELECT, TEST3

Winking

Double winking

Winking

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ZETRON 2000 Series Especificaciones Pagina 182

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