Avaya CMC1 manual Closet Mounted 110RA1-12, Terminating Resistor Block 110RA1-12

Installing and Cabling the Cabinets

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 57 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.

Figure 57: Terminating Resistor Block (110RA1-12)

		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
3.	Output row “A”		12 circuits (2APR) per block
4.	Output row “B”	7.	110D-4 connector block

Figure 58 shows the wiring connections for the 110RA1-12 terminal block. The TN556D BRI switch port is terminated to bottom row C.

128 Installation, Upgrades and Additions for Avaya CMC1 Media Gateways