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Installing and wiring telephones and trunks
102 Installing and Connecting the MDF and Telephones
32 R-O TLC2 Tip-PBX Line Port 2
7 O-R RLC2 Ring-PBX Line Port 2
33 R-G TST2 Tip-Emergency Terminal 2
8 G-R RST2 Ring-Emergency Terminal 2
34 R-BR TTC3 Tip-PBX Trunk Circuit 3
9 BR-R RTC3 Ring-PBX Trunk Circuit 3
35 R-S TTK3 Tip-CO Trunk Circuit 3
10 S-R RTK3 Ring-CO Line Port 3
36 BK-BL TLC3 Tip-PBX Line Port 3
11 BL-BK RLC3 Ring-PBX Line Port 3
37 BK-O TST3 Tip-Emergency Terminal 3
12 O-BK RST3 Ring-Emergency Terminal 3
38 BK-G TTC4 Tip-PBX Trunk Circuit 4
13 G-BK RTC4 Ring-PBX Trunk Circuit 4
39 BK-BR TTK4 Tip-CO Trunk Circuit 4
14 BR-BK RTK4 Ring-CO Trunk Circuit 4
40 BK-S TLC4 Tip-PBX Line Port 4
15 S-BK RLC4 Ring-PBX Line Port 4
41 Y-BL TST4 Tip-Emergency Terminal 4
16 BL-Y RST4 Ring-Emergency Terminal 4
42 Y-O TTC5 Tip-PBX Trunk Circuit 5
17 O-Y RTC5 Ring-PBX Trunk Circuit 5
43 Y-G TTK5 Tip-CO Trunk Circuit 5
18 G-Y RTK5 Ring-CO Trunk Circuit 5
44 Y-BR TLC5 Tip-PBX Line Port 5
19 BR-Y RLC5 Ring-PBX Line Port 5
45 Y-S TST5 Tip-Emergency Terminal 5
20 S-Y RST5 Ring-Emergency Terminal 5
46 V-BL COM1 Common 1 Relay Contact
21 BL-V NO1 Normally Open 1 Contact
Table 18: Pin assignments for 25-pair connector (continued)
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