AT&T 555-230-894 manual Issue

9

Table 9-9. Circuit Pack and Auxiliary Equipment Leads (Pinout

-20

Charts) — Continued

Issue

2-Wire

Digital

1

Line and

ISDN

ISDN

Conn.

Analog

Analog

Digital

CO

DID/

DS1

BRI

BRI

September

Color 1,2

Pin

Line

Line

Data

Line

Hybrid

MET

AUX

CO

Trk.

DIOD

Tie

Tie

Line

Line

Numbers

8 ports

16 ports

Line

4-wire

Line

Line

Trk.

Trk.

3-wire

Trk.

Trk.

Trk.

4-wire

2-wire

V-S

50

S-V

25

1995

† The wire colors in this pinout chart apply only to B25A and A25B cables. H600-307,60 cable colors are not shown.

Within this chart, the following abbreviations apply for analog tie trunks:

T,R

PBX transmit voice

T1,R1

PBX receive voice

MPBX transmit signal

E PBX receive signal

PX	PBX transmit	T	Tip	(A)	Green
TX	Terminal transmit	R	Ring	(B)	Red
		S	Sleeve
LI, LI*	Digital Trunk IN
LO, LO*	Digital Trunk OUT

1Color designation is AA-BB, where AA is the main wire color, and BB is the color of the short stripe on the wire.

2For translation purposes, the following wire colors apply in the above table: W White

BL Blue

O Orange

G Green BR Brown

S Slate (Grey)

R Red

BK Black

YYellow

V Violet

This page left intentionally blank so you can remove the pinout chart from the book if necessary.

Install and Wire Telephones and Other Equipment