ViewSonic EXES-2000 manual Connection of equipment, Addition of LM unit, More than 16 stations

6. Connection of equipment

6-1 Addition of LM unit

A basic system using the EX-200 exchange is comprised of 8 stations (2 LM units). The LM unit needs to be added according to the following procedures when more stations are required.

(1)Establishment of the LM unit number

Set switches SW-1 and SW-2 on the LM unit to positions as shown in the table at right according to the station numbers connected to each LM unit. Since the LM units of a basic system are pre-set as No. 1 and No. 2 when supplied from the factory, the LM number has to be fixed only for the additional units.

(2)Mounting LM unit

(For the system with up to 16 stations)

Insert the additional LM units into the exchange and connect CN1 of the LM unit to the LM unit connection cable.

(More than 16 stations)

LM unit No. Station No.

120~23

224~27

328~31

432-35

536~39

640~43

744~47

848~51

LM unit connection cable

Position of SW1/SW2

1

2

3

4

1

2

3

4

Remarks

Mounted

in EX-200

Mounted

in FC-210

Additional LM units

CC unit

YR-820

After connecting between the EX-200 and the FC-210 with the YR-820, mount the LM units. An earth wire of the YR-820 is to be connected to the earth terminal of the FC-210.

Earth wire

EX-200 FC-210

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