HiPath1120, Installation Guide
3-33
Installation
Installing telephone terminals
3.13 Installing telephone terminals
A Profiset 3030 System Telephone has four wires (A, B, C, D), two used for voice (A, B), and
two for data (C, D).
An optiPoint-type system telephone has four wires (A, B, C, D), two of which (A, B) are
required for voice communications.
A Standard Telephone (DP/MF) has only two wires (A, B), both used for voice.
Installation Procedures
For 2-wire analog telephone sets (A, B) a momentary short-circuit should not cause any
problem.
The maximum distance for installing a Profiset 3030 system telephone using a two-pair cable
with a 0.4 mm
2
copper wire is 0.3 miles and for standard telephones it is 1.5 miles.
Standard Telephones (DP/MF) and optiPoint telephones must be connected to the
HiPath 1100 system using wires A and B only. Do not use wires C and D.
Step Procedure
1. Install telephone jacks at the extensions.
2. Connect each extension jack to the desired A/B slot on the Main Distribution Frame.
3. Profiset 3030 system telephones are preset at factory default for C/D pairs.
If necessary, choose a different C/D pair, then program the new C/D interface
assignment.
4. Install the telephone sets.
5. “Performing a visual inspection” on page 3-35.
6. Configure the required data (see Service Manual).
Warning
Profiset 3030 system telephones are powered through the C and D wires. Take the
necessary precautions to avoid short circuits at the interconnect block. If a short cir-
cuit occurs between wires C and D, the interface’s protection will take the extension
out of service. To activate the extension again, remove the short, disconnect the sys-
tem telephone then reconnect it. The interface should then start operating normally.
!
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