Section | Chapter 7. Specifications |
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|
Cabling Specifications
Table
Loop Type and Resistance | Resistance | Cable Gauge | Maximum Cabling | |
|
| (AWG) | Length in Feet | |
|
|
| (Distance from the | |
|
|
| DBS) | |
|
|
|
| |
|
| 22 | 1239 | |
|
|
|
| |
Key phone, EM/24 | 40 Ohms | 24 | 779 | |
|
|
|
| |
|
| 26 | 490 | |
|
|
|
| |
|
| 22 | 619 | |
|
|
|
| |
DSS/72 | 20 Ohms | 24 | 388 | |
|
|
|
| |
|
| 26 | 244 | |
|
|
|
| |
|
| 22 | 3097 | |
|
|
|
| |
SLT | 100 Ohms | 24 | 1948 | |
|
|
|
| |
|
| 26 | 1225 | |
|
|
|
| |
OPX (Loop between the DBS and |
| 22 | 309 | |
the OPX Adaptor) |
|
|
| |
10 Ohms | 24 | 194 | ||
| ||||
|
|
|
| |
|
| 26 | 122 | |
|
|
|
| |
OPX (Loop between the OPX | 900 Ohms | 22 | 27877 | |
Adaptor and a pushbutton SLT) |
|
|
| |
(excluding end | 24 | 17532 | ||
| ||||
| impedance) |
|
| |
| 26 | 11025 | ||
|
|
|
| |
Doorphone (Loop between the |
| 22 | 309 | |
DBS and the Doorphone Adaptor) |
|
|
| |
10 Ohms | 24 | 194 | ||
| ||||
|
|
|
| |
|
| 26 | 122 | |
|
|
|
| |
Doorphone (Loop between the |
| 22 | 1239 | |
Doorphone Adaptor and the Door- |
|
|
| |
40 Ohms | 24 | 779 | ||
phone) | ||||
|
|
| ||
| 26 | 490 | ||
|
| |||
|
|
|
| |
|
| 22 | 309 | |
|
|
|
| |
Voice Announce Unit | 10 Ohms | 24 | 194 | |
|
|
|
| |
|
| 26 | 122 | |
|
|
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DBS Manual - Revised April 2000 |
