2.4 Connecting The Lines
The line terminations for the common equipment cabinet are standard modular plug/jack
connections. Line configuration must be loopstart only. Each modular jack provides termination
for two lines. Modular line jacks 1 and 2 also provide termination for an auxiliary pair in
addition to the two outside lines. The outside line termination can be a type 66M-xx connector
block or individual 6-position modular jacks. The line cord that is routed between the outside
line termination and the common equipment termination should be twisted-pair wiring. The
G0408, G0816 and G1632 common equipment supports the installation of up to 4, 8, or 16 lines,
respectively. Add-on expansion modules are available to expand the line capacity of the systems.
Figure 2–4: Locating The Line Connections
16-Line, 32-Station Base Unit
Line Jacks 1 & 2, Aux 1 (Line 2)
Line Jacks 3 & 4, Aux 2 (Line 4)
Line Jacks 5 & 6
Line Jacks 7 & 8
Line Jacks 9 & 10
Line Jacks 11 & 12
Line Jacks 13 & 14
Line Jacks 15 & 16
Grounding
Terminal
4-Line, 8-Station Base Unit
Lines 3 & 4, Aux. Line 4
Lines 1 & 2, Aux. Line 2
Grounding
Terminal
Line Jacks 1 & 2, Aux. Line 2
Line Jacks 3 & 4, Aux. Line 4
Line Jacks 5 & 6
Line Jacks 7 & 8
Grounding
Terminal
8-Line, 16-Station Base Unit
CAJS082
Digital Telephone System IMI66–107
2 – 12 Installing The DSU
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