Chapter 2 Hardware Installation and Connections

IES-6000M User’s Guide

42

Alternatively, use a Telco-50 cable to connect the SEC1024s 

USER

 Telco-50 connector 

directly to the Main Distribution Frame when no ADSL/VDSL service is required (see 

Section 

2.4.3 on page 42

).

2.4.2  Splitter Chassis Rear Panel Connections (DSL)

A DSL splitter card separates the voice signal from the DSL signal. It feeds the DSL signals to 
the DSL line card and diverts the voice signal to the 

CO

 Telco-50 connector (or wire wrapping 

pins) on the splitter chassis’ rear. 

Connect the 

CO

 Telco-50 connectors to the PBX or PSTN/ISDN switch when using the 

ADSL splitter card.

Connect the 

USER

 Telco-50 connectors to the subscribers’ telephone wiring. In most multi-

tenant unit applications, the 

USER

 pins connect to the subscribers’ telephone wiring via Main 

Distribution Frame (MDF).

See 

Section 2.4.8 on page 45

 for example splitter chassis rear panel connections.

2.4.3  Splitter Chassis Rear Panel Connections (VoIP)

When using the VoIP line card in conjunction with an ADSL or VDSL card and its associated 
splitter card(s), connect the VoIP line card’s extension card(s) and the DSL splitter card(s) as 
follows.

"

Use 180-degree Telco-50 cables for VoIP rear panel connections (see 

Appendix A on page 71

 for information on 180-degree Telco-50 cable length).