Cabling Precautions; Table 2-4 Cable Connection Between An Analogue Interface And A Single Line Telephone; Table 2-5 Cabling Requirements - NEC Xen Master System Hardware Manual

System Hardware Manual
Table 2-4 Cable Connection between an Analogue Interface and a Single Line
Interface
Equipment
APR-UA ADP
SLT(1)-U13 ADP
SLI( )-U13 ETU
OPX(2)-U13 ETU
Note 1: Mixing digital and analogue ports though the same 25-pair cable
runs is not recommended.
Note 2: The Maximum Loop Resistance includes the internal resistance
of the SLT device.
Connected Equipment
Music on Hold and Background Music
Sources
External Amplifier
4.2

Cabling Precautions

4.2.1 Cable Placement
When selecting cables and Main Distribution Frame
(MDF), future expansion or assignment changes should
be given due consideration. Avoid running cables in the
following places:
✆
✆
✆
✆
Telephone
Maximum Loop
Cable Resistance
Twisted Pair
Twisted Pair
Twisted Pair
Twisted Pair

Table 2-5 Cabling Requirements

A place exposed to wind or rain.
A place near heat radiating equipment or where the
quality of station cable covering could be affected by
gases and chemicals.
An unstable place subject to vibration.
Environmental Conditions Temperatures:
Operating:
Recommended Long Term:
Humidity Operating:
Typical Distance
using Twisted 1-
(ohms) Pair 24AWG
600 200m
600 200m
950 300m
1800 6km
Cable
Hi-Fi Shielded Audio Cable
Hi-Fi Shielded Audio Cable
0°C ~ 40°C
10°C ~ 32.2°C
10% ~ 90%
noncondensing
May 2001
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