Electrical Installation

BITS Interface Connections

BITS Interface Connections

NIM IOMs include a Building Integrated Timing Supply (BITS) input connector for network timing. If required, the BITS impedance jumpers on the OC-12 NIMs are normally adjusted during “NIM Installation” on page 5-9.)

1.Use cable rated for Category 3 (CAT3) or better.

2.Route the cable to the lower-left, rear of the chassis.

3.Connect the cable to the RJ48C BITS connector on the rear of the chassis. (See example at right.)

4.Use the plastic cable guides and cable protector shipped with the Broadmore 1750 to secure the cable.

BITS Input Jack

RJ48C Plug

 

(Front View)

 

 

(Pin Side)

 

 

 

 

 

 

 

 

 

 

 

 

 

21

 

Pins

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin 1

Tip Ring

Receive

Twisted Pair

NIM

IN

OUT

BITS

IOM

NIM

7 6 6 0 - 4 0 6

Broadmore 1750 - Release 4.6

6-7

Page 105
Image 105
Carrier Access 1750 user manual Bits Interface Connections