Trunk Cabling; Extension Cabling; Figure 2-21 Digital Extension Cabling - NEC SL1100 Hardware Manual

SL1100
• Do not run the cable near a high frequency generating device.
• Use cable protectors in case the cables are run on the floor.
• Aerial distribution wiring is not allowed.
• Trunks must be installed with lightning protectors.
• Do not install the DSX Terminal in the SL1100 system, it does not work properly.

1.6.3 Trunk Cabling

Trunk cabling is required for the 4COIDB or 1PRIU PCBs.
Refer to INSTALLING THE EXPANSION INTERFACE CARDS on page 2-38
4COIDB and 1PRIU PCBs.

1.6.4 Extension Cabling

The 084M-B1 PCB within each KSU provides two "RJ61" modular jacks for digital extension (8ports)
and one for analog extensions (4ports).
Before plugging in the Multiline Telephone, DSS Console, Single line Telephone
or Doorphone, ensure all Main and Expansion KSUs are powered off.
DSX Terminal does not work properly when it connected.
T: Tip
R: Ring
Multiline Telephone
2-14
J103 J431 J411
J102 J101
ESI 5-8 ESI 1-4
5 4 3 6 2 7 1
Port 1 Port 2 Port 3 Port 4
T R T
Modular Cable
(2-wire, Straight)
Exit Help
ABC DEF
Flash Transfer
1 2 3
GHI JKL MNO
Mute DND
4 5 6
PQRS TUV WXYZ
Clear/Back
7 8 9
0
Speaker Hold
DSS Console

Figure 2-21 Digital Extension Cabling

for mounting and cabling
J421
J7
8
R
Max cable length
24AWG ( 0.5 mm)
MLT, DSS
ISSUE 1.0
300 m
(984.3 ft)
Installation