NTBK50 2.0 Mb PRI card Page 763 of 894

Figure 163

NTBK50 2.0 Mb PRI card with daughterboards

Stiffeners

 

 

 

 

 

 

 

 

 

 

NTAK20

 

 

 

 

 

Clock

 

 

 

 

 

Controller

LEDs

 

 

 

 

Connector Sockets

 

 

 

 

 

DIS

 

 

 

 

 

ACT

 

1 2

 

 

 

RED

 

 

 

 

YEL

SW1

On

 

 

 

Off

 

 

 

LBK

 

 

 

 

 

 

 

 

 

CC

 

 

 

 

 

DCH

 

 

 

 

 

Bantam

 

 

1

2

 

 

SW4

On

 

 

Jacks

 

 

NTAK93 or

 

Off

 

RCV

 

 

2

 

 

 

NTBK51

 

 

 

 

 

 

SW2

On

 

D-Channel

 

 

Off

 

Interface

XMT

 

 

 

 

 

 

 

 

 

 

553-7872

 

 

Standoffs

 

 

 

 

 

 

 

553-CSE7872

Circuit Card Description and Installation

Page 763
Image 763
Nortel Networks 553-3001-211 manual NTBK50 2.0 Mb PRI card with daughterboards