AT&T 555-230-894 manual Closet Mounted 110RA1-12, Pin Terminating Resistor Adapter 440A4

Install the Basic Rate Interface (BRI) Terminating

Resistor

1.	8-Wide Plug	3.	Plastic Housing
2.	Cord	4.	8-Wide Jack

Figure 9-17. 8-Pin Terminating Resistor Adapter (440A4)

Closet Mounted (110RA1-12)

The 110RA1-12 terminating resistor block is designed to mount in the telecommunications wire closet. It consists of 12 (2-pair) circuits and provides the 100 Ohm termination used for Integrated Services Digital Network (ISDN) Basic Rate Interface (BRI) circuits. Figure 9-18shows the wiring of the 110RA1-12. Three rows of 110D-4 connector blocks are mounted on a printed wire board along with circuit resistors and capacitors. The bottom row is designated as the input row and the top and middle rows are designated as the output rows. The circuit assembly is mounted on a standard 110A-100 pair mounting base. The 110RA1-12 is shipped with preprinted designation strips to simplify circuit identification and installation.

		1		2
1	2	3	4	45 46 47 48

3	6
4

5 7

8

Issue 1 September 1995 9-41