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DS1000/2000 Correspondence Course
System Installation
NEC America
DS1000/2000 Workbook
◆
43
Cabling Requirements
1.
Do not run station cable parallel with the AC source, telex or computer, etc. If
the cables are near cable runs to those devices, use shielded cable with
grounded shields or install the cable in conduit.
2.
When cables must be run on the floor, use cable protectors.
3.
Cable runs for key telephones, single line telephones, Door Boxes and 3-ACI
Modules must be a dedicated, isolated cable pair.
Device
Cable Type
Cable Run
Length (ft)
Notes
Key Telephone
2-wire 26 AWG
DS1000: 650
DS2000: 1300
2-wire 24 AWG
DS1000: 1000
DS2000: 2000
Single Line
Telephone
2-wire 26 AWG
DS1000: 8000
DS2000: 11,500
at constant 20 mA
3150
at constant 35 mA
2-wire 24 AWG
DS1000: 12,000
DS2000: 18,000
at constant 20 mA
5050
at constant 35 mA
2-wire 22 AWG
DS1000: 16,000
DS2000: 29,000
at constant 20 mA
8000
at constant 35 mA
Analog Door Box
2-wire 24 AWG
DS1000: 330
DS2000: N/A
2-wire 22 AWG
DS1000: 550
DS2000: N/A
Digital Door Box
2-wire 26 AWG
DS1000: 650
DS2000: 1300
2-wire 24 AWG
DS1000: 1000
DS2000: 2000
2-wire 22 AWG
DS1000: TBD
DS2000: 2000
2-OPX
2-wire 24 AWG
DS1000: 500
DS2000: 1000