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4(5)
Datum -
Date
Rev
Nr -
No.
Uppgjord
(även faktaansvarig om annan)
-
Prepared
(also subject responsible if other)
Dokansv/Godkänd -
Doc respons/Approved
Kontr -
Checked
File
1996-04-10
D
47/1531-APD 101 02 Uen
INSTALLATION INSTRUCTIONS
7
Power equipment
The TAU D is powered from the Extension line.
8
Earthing
The TAU D needs no special earthing.
9
Cabling
Maximum line length using DBC 200 series telephones and 0,5 mm EKKX cable:
1000m (3280 ft)
exemption: using a DBC 203 with 2 DBY 409 and 0,5 mm EKKX cable: 800m (2625 ft)
Maximum line length using DBC 600 series telephones and 0,5 mm EKKX cable:
1000m (3280 ft)
Recommended maximum cable length between:
TAU D and PC:
3,0m (9,8 ft)
The following cables are used:
-
Telephone jack cable with modular RJ12 connector towards the TAU D
-
Telephone cable with modular RJ12 connector in both ends to be used when a digital system
telephone shall be connected to the TAU D
-
Standard 9 pole V.24/RS-232-C cable with a male connector towards the TAU D.
NOTE: Using TAU D together with DBC 600 series telephones connected to ELU 28 or
ELU 25/3 will in some configurations slightly exceed the maximum line current.
This will cause the TAU D and DBC 600 telephone not to start or work properly.