Lucent Technologies 555-230-128 Closet Mounted 110RA1-12, Terminating Resistor Block 110RA1-12

DEFINITY Enterprise Communications Server Release 6	Issue 3
Installation and Test for Compact Modular Cabinets 555-230-128	May 1998
1 Install and Cable the Cabinets
Install the BRI Terminating Resistor	Page 1-79

Closet Mounted (110RA1-12)

The 110RA1-12 terminating resistor block consists of twelve 2-pair circuits and provides the 100 Ohm termination used for ISDN-BRI circuits.

Figure 1-34 shows the wiring of the 110RA1-12. Three rows of 110D-4 connector blocks contain 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.

		1		2
1	2	3	4	45 46 47 48
3					6
4

	5			7
				r910014 RPY 012098
Figure Notes
1.	Circuit 1	5.	Input row “C”
2.	Circuit 12	6.	Only first circuit shown to all 12
3.	Output row “A”		circuits (2APR) per block
		7.	110D-4 connector block
4.	Output row “B”

Figure 1-34. Terminating Resistor Block (110RA1-12)