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3
Installing the 24-Port Adapter
3-6 Sylantro 24-Port Adapter Installation Guide
For digital adapters, there are four wires per telephone port. However, some
digital telephones use only two wires similar to analog telephones. If your
digital telephones use four wires, use the punch down information in Table 3-2.
Table 3-2 shows the port, pin, color, and signal for each wire of a 50-pin
telephony cable.
Violet
21
46
Blue
Violet/Blue
Tip
21
Blue/Violet
Ring
22
47
Orange
Violet/Orange
Tip
22
Orange/Violet Ring
23
48
Green
Violet/Green
Tip
23
Green/Violet Ring
24
49
Brown
Violet/Brown Tip
24
Brown/Violet
Ring
25
50
Slate
Violet/Slate Not used.
Tip
25
Slate/Violet Not used.
Ring
1. The remaining ports are reserved for future use.
Table 3-2
Digital Punch Down Information
Port
Pin
Wire color
Signal
1
1
Blue/White
Voice receive
2
Orange/White
Data receive
26
White/Blue Voice
transmit
27
White/Orange
Data transmit
2
3
Green/White
Voice receive
4
Brown/White
Data receive
28
White/Green
Voice transmit
29
White/Brown
Data transmit
Table 3-1
Analog Punch Down Information (Continued)
Binder
color
Port
Pin
Stripe
color
Wire color
Signal