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SAMSUNG DCS 70
INSTALLATION MANUAL
POWER UP PROBLEMS
If the PSU AC LED does not illuminate the problem must be corrected before proceeding
further with the KSU installation. Follow the steps below to isolate the problem.
1. Turn OFF the switch on the KSU and at the GPO prior to any work on the
system power supply., remove the power supply cover and check the fuses
(See Figures 4-3 and 4-4).
2. Power off the system and unplug all of the cards including the MEM card.
Power the system on again. If the PSU AC LED now illuminates, one of the
cards is faulty.
3. Power off the system and fit the MEM card only. Power the system on again. If the PSU
AC LED now illuminates, and the MEM card LED is OK, one of the other cards is faulty.
Power off the system and plug the cards in one by one, powering on each time, to locate
the faulty card.
4. If the PSU AC LED still fails to illuminate, replace the PSU. If the system still fails a
replacement KSU is required.
MEM CARD INDICATIONS
Having verified proper operation of the power supply, check the MEM card LED. The LED
should flash rapidly indicating the main processor is functioning. The battery switch should
now be turned ON.
If the MEM card LED is not flashing after 10s, power off the system and replace the MEM
card. If the LED still fails to flash a replacement KSU is required.
DEFAULT TRUNK AND STATION NUMBERING
Upon initial power up, the CPU reads each slot for the existence of a card and identifies the
type of card. It stores this as the default configuration.
The system assigns default trunk numbers beginning with 701 upwards. The lines are
numbered sequentially from 701 upwards including both analogue exchange lines and BRI
and PRI ISDN lines.
The system assigns default station numbers from 201 upwards.
Keyset daughter boards are assigned numbers from 301 upwards. For example, the
daughterboard plugged into keyset 203 will have the default number 303.
The default configuration assigns the operator position to the lowest DLI port and all
incoming trunks ring that station.
Once the cabling has been completed, the keysets, exchange lines and single line telephones
should be tested for correct operation.
Station and trunk numbers can be changed, rearranged and reassigned as required using
system programming.
Page 4-9
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10
January, 2000
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