NT8D14 Universal Trunk card Page 603 of 894

Table 184

Universal trunk card – backplane pinouts (Part 2 of 2)

 

 

 

Signal

 

 

 

Signal

 

 

Back-

 

 

 

Back-

 

 

 

 

 

 

 

 

 

 

Trunk

plane

RAN

Paging

Other

plane

RAN

Paging

Other

Number

Pin

mode

mode

modes

Pin

mode

mode

modes

 

 

 

 

 

 

 

 

 

7

68A

Tip

Tip

Tip

68B

Ring

Ring

Ring

 

69A

CP

A

N/A

69B

MB

RG

N/A

 

 

 

 

 

 

 

 

 

Configuration

The trunk type for each unit on the card as well as its terminating impedance and balance network configuration is selected by software service change entries at the system terminal and by jumper strap settings on the card.

NT8D14 has a reduced jumper strap setting on the card. There are only three jumpers, J1.X, J2.X, and J3.X on each channel. Tables 185, 186, and 187 show the functionality of these three jumpers.

Circuit Card Description and Installation

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Image 603
Nortel Networks 553-3001-211 manual Universal trunk card backplane pinouts Part 2 Signal, Back, 68A Tip, 69A