WIRING FOR TIE-LINE CONNECTION OF THE EXCHANGES
Each exchange can be connected by means of a cable with a diameter of 0.65mm (25.6 mils.) for a distance of up to 2km (5600 ft).
Regarding the tieline links which are not used, turn off the DIP switch of each unused tieline link inside the
Connect "T" line (2 wires) of the 4 wires of each link to "R" line (2 wires) of the other exchange. The 2 wires of the "T" line and "R" line have no polarity.
If the
Exchange "A" | Exchange "B" |
1. Wiring for tie-line connection of 2 exchanges
Exchange "A" | Exchange "B" |
Note 1. Any combination of
future, we suggest you connect (link No. 0, 1, 2, 3) of exchange "A" to 6, 7) of exchange "B".
2. Wiring for tie-line connection of 3 exchanges
Exchange "A"
Exchange "C"
Note 2. Be sure to connect
Connection of | to |
Exchange "B"
EX-3B
(link No. 0, 1, 2,3) to (link No. 4, 5, 6, 7) between the exchanges. will lead to failure of proper operation of the system.
3. DIP Switch selection
DIP Switch
1.Switching arrangements of DIP switches
2.In the event of the tieline link not to be used, turn off its corresponding DIP switch on the
LINK No.
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