NEC Aspila EX Hardware Manual page 108

CÔNG TY VIỄN THÔNG VIỆT PRO
Section 3: Installing Extensions and Trunks
Installing 4-wire/8-lead Tie Lines:
1.
2.
3.
Adding Ferrites to Tie Line Cables
1.
2.
3.
3-10 Section 3: Installing Extensions and Trunks
Chuyên phân phối tổng đài NEC
For each trunk, run two-pair cable from the PSTN Network Termination point to the TLIU
PCB. Refer to Tie Line (4TLIU) PCB (Figure 2-14) (page 2-28) for details of the RJ61 con-
nector pin outs..
RJ61 Cable Connector - 4-Wire E&M, CN100 - CN400
Pin No.
Make sure the strapping on the 4TLIU PCB is set to the proper type (2-wire or 4-wire and Type I,
II, III, IV or Type V). Refer to Tie Line (4TLIU) PCB (Figure 2-14) on page 2-28 for detail on
strapping.
Plug in the corresponding RJ-61 connector to the 4TLIU PCB connector.
Four ferrite sleeves are supplied with the TLIU PCB
Each cable that will be connected to the TLIU PCB must pass two times (one turn) through a
ferrite sleeve to comply with EMC requirements.
Figure 3-1: Example of one turn through a Ferrite Sleeve
The ferrite must be located, on the cable, as near as possible to the plug that will be connected
to the PCB.
Figure 3-2: Example of Ferrite Location.
Connection
1 SB
2 M
3 R
4 R1
5 T1
6 T
7 E
8 SG
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Description
Ground wire for control
Control signal to trunk
Voice signal to trunk
Voice signal from trunk
Voice signal from trunk
Voice signal to trunk
Control signal from trunk
Ground wire for control
Aspila EX Hardware Man-