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DPH-B13 ETU
The Door Phone (DPH) ETU provides connection for two Door Phone units and two
Door Lock Release devices. Use only the NEC DP-D-1D Door Phone Unit. A suitable
third-party door lock release device must be locally supplied. One DPH-B13 ETU can
be installed in the system.
To install the DPH-B13 ETU:
1.
2.
3.
4.
5.
6.
7.
8.
9.
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Ensure that the system is turned OFF.
Remove the cover from the KSU.
Carefully remove the ETU from its packaging, using a wrist strap connected to the
frame ground on the KSU to avoid static discharge.
Locate connector CN5 (marked DPH) on the mainboard and slide the ETU
between the posts.
Using a philips head screwdriver, secure the ETU to the KSU by tightening the
screw captive in the metal bracket on the ETU.
Run the cabling for the door phones and door lock releases from the ETU to the
external MDF. A single pair is required for each connection, and this is not polarity
sensitive.Crimp the special connector supplied to each cable pair.
Replace the KSU cover.
Turn the system ON.
Program the system as required.
Figure 2-33: DHP-B13 ETU
Installation Manual, Chapter 2 – KSU Installation
A6-506000-642-01(8508), Release 6.0, November 2003
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