May 2001
System Hardware Manual 5 - 177
A6-324000-642-01 – Release 4.0
May 2001
5.8 DPH(4)-U13 ETU
5.8.1 Description
The DPH(4)-U13 ETU provides connection for four
Doorphones (DP-D-1D), and also provides the associated
four Door Lock Release relays.
Doorphones and relays are paired together so that a
station user talking into a doorphone, controls only that
Door Lock Release relay when the feature code is dialled.
The DPH(4)-U13 has two audio paths to be shared by four
doorphones. Two simultaneous doorphone calls are
allowed. Doorphones 1/3 and 2/4 are paired together.
5.8.2 Installation
A maximum of one DPH(4)-U13 ETU can be installed in
both the Xen Master (slots S1~S8) and Xen Axis (slots
S3~S7).
5.8.3 Switch Settings
Refer to Figure 5-40 DPH(4)-U13 ETU and Table 5-20
DPH(4)-U13 Jumper Settings for DPH(4)-U13 ETU default
jumper settings and jumper locations.
5.8.4 LED Indications
Live LED indications are listed below.
✆ Blinking Red Normal Operation
✆ Steady Red Operation Stopped (power still on)
✆ Off No Power
LED 1 indication are listed below.
✆ Steady Red A Circuit Is Busy
✆ Off All Circuits Are Idle
Table 5-20 DPH(4)-U13 Jumper Settings
Jumper Setting Description
S101 Shorted DP1 and DP3 removed short bar to
increase DP volume by 6 dB.
S201 Shorted DP2 and DP4 removed short bar to
increase DP volume by 6 dB.
S102 Shorted DP1 and DP3 remove shorting bar to
increase DP transmit volume by 6
dB.
S202 Shorted DP2 and DP4 remove shorting bar to
increase DP transmit volume by 6
dB.
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