NEC Aspila EX Hardware Manual page 75

CÔNG TY VIỄN THÔNG VIỆT PRO
Installing the 4TLIU PCB:
1.
2.
3.
4.
5.
6.
Aspila EX Hardware Manual
Chuyên phân phối tổng đài NEC
Section 2: PCB Installation and Startup
Set the run/block switch to block, DOWN .
Set the straps for either the 2-wire or 4-wire (see Figure 2-14).
Set the straps for signaling type (1-5).
Install the 4TLIU into a slot.
Note that the white PCB Pull Tab should always be positioned closest to the top of the
cabinet.
Set the run/block switch to run, UP .
With normal operation, the status LED will flash fast. If trouble was found during the self
diagnostics routine, the status LED will flash slow.
The 4TLIU will use the first block of 4 trunk ports available. Confirm the ports used with Pro-
gram 10-03
Figure 2-14: 4TLIU TIE LINE PCB INSTALLATION
Section 2: PCB Installation and Startup
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