
Cable Distance Limitations
The following specifications provide allowable cabling distances for the following devices:
●
●Multiline Voice Terminals
●Data Terminals
Single-Line Voice Terminals
SUPPORTING |
| ||
CIRCUIT | (0.5106 mm) | ||
PACK |
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| |
FEET | METERS | ||
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ZTN78 | 2,000 | 610 | |
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|
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TN742 * | 24,000 | 7,320 | |
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TN742 † | 15,000 | 4,500 | |
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*2500-type voice terminals
†7101-type voice terminals
IN BUILDING
VOICE
TERMINAL
EXTENDED STATION
OR
OR
VOICE
TERMINAL
<2000 FEET
> 2000 FEET *
ZTN78
TIP RING LINE
CP
TN742
ANALOG LINE +
CP
*UP TO 24,000 FEET. TIP/RING LOOP RESISTANCE FROM SYSTEM CABINETS (INCLUDING VOICE TERMINAL) MUST NOT EXCEED 1300 OHMS.
+FIVE
WHEN USING THE
Figure 5-1. Single-Line Voice Terminal Allowable Cable Distances
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