Lucent Technologies 555-230-128 manual Install Multi-point Adapters, BR851-B Adapter T-Adapter

DEFINITY Enterprise Communications Server Release 6	Issue 3
Installation and Test for Compact Modular Cabinets 555-230-128	May 1998

1Install and Cable the Cabinets

Install Multi-point Adapters Page 1-81

Install Multi-point Adapters

Use multi-point adapters to provide signal fanout of the T-interface. BR851-B or the 367A perform fanout at the work station. These adapters support more than 1 ISDN terminal per horizontal 4-pair D-inside wire (DIW). To support multiple horizontal runs, a MDF with multiple common rows performs fanout in the satellite closet. The 110RA1-12 provides fanout for two horizontal runs and contains the

100Ohm terminating resistor. Use this for basic multi-point or point-to-point with terminating resistor in the closet. Other fanout blocks include the 110AB1-025M and the 110AB1-050M.

BR851-B Adapter (T-Adapter)

The BR851-B supports 2 terminals on 1 multi-point BRI at the work station and is used to fanout transmission and power. See Figure 1-36.

3

2 8 7 6 5 4 3 2 1

1 4 4 3 1 1 3 2 2 5

R T R T R T R T

	R T R T R T R T		R T R T R T R T
1	4 4 3 1 1 3 2 2	1	4 4 3 1 1 3 2 2
2	8 7 6 5 4 3 2 1	2	8 7 6 5 4 3 2 1
	4	r910017 RPY 012098	4

Figure Notes
1.	Wire pairs	4.	Female
2.	Pin numbers	5.	T-Type adapter (BR851-B)
3.	Modular plug (male)

Figure 1-36. Wiring Diagram of BR851-B