9 | Table |
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| Charts) — Continued |
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Issue |
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| Digital |
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1 |
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| Line and |
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| ISDN | ISDN | |
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| Conn. | Analog | Analog |
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| Digital |
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| CO | DID/ |
| DS1 | BRI | BRI | ||
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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 | Line | Line |
| Trk. | Trk. | Trk. | Trk. | Trk. | ||||||||
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| 50 |
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| 25 |
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1995 |
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† The wire colors in this pinout chart apply only to B25A and A25B cables. |
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| Within this chart, the following abbreviations apply for analog tie trunks: |
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| T,R | PBX transmit voice |
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| T1,R1 | PBX receive voice |
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MPBX transmit signal
E PBX receive signal
PX | PBX transmit | T | Tip | (A) | Green |
TX | Terminal transmit | R | Ring | (B) | Red |
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| S | Sleeve |
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LI, LI* | Digital Trunk IN |
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LO, LO* | Digital Trunk OUT |
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1Color designation is
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
