Vodavi Starplus Dhs/dhs-e Technical Manual

2-48DHS Installation
Figure 2-26: External Paging Equipment Installation
Conditions
†If the one-way paging equipment requires DTMF signaling from the key telephone, 
then an unused CO Line should be dedicated for proper page interface.
†For Talk-back Paging or Multi-zone External Paging, the manufacturer recommends 
using a vacant CO line port for best operation.
†A 600 ohm interface is provided on every CO line; therefore, any available CO line may 
be used for paging. 
†Since all CO line dialing is...

DHS Installation2-49
12. External Music Source 
The Basic KSU is shipped with the Standard MOH/BGM Module. This module is located on 
a stand-off post toward the upper right corner of the CPU Module when viewing the 
installed KSU. The module provides a 1/8 in. phono jack (refer to Figure 2-25: 1/8 in. Phono 
Jack) labeled JK1 MOH JACK for direct connection to an external music source. The 
system music input impedance is 2 ohms. A trim Potentiometer (POT) is also provided on 
the Standard MOH Module for...

2-50DHS Installation
To set a desirable MOH level:
1.  Set the trim POT (labeled VR1 MOH VOL) at about mid-point.
2.  Access an idle CO line, and dial into the system on another CO line.
3.  When the system begins to ring, press [HOLD] to place the first call on hold.
4.  Answer the ringing CO line. You should hear the MOH from the previous (now 
holding) CO line.
5.  Adjust the music level at the source. That is, use the volume control of the music 
source to adjust the MOH level to a desirable level....

DHS Installation2-51
5. Terminate the other end of the cable on an industry standard 66M1-50 block for 
interconnection to the loud bell and power source.
6. Terminate the Loud Bell and power supply leads on an industry standard 66M1-50 
block.
7. Using cross-connect (jumper) wire connect each of the three LBC components 
(contact, bell and power source) in series fashion. 
14. 2-Port Analog Adapter 
The 2-Port Analog Adapter is used to connect analog SLTs and other analog devices to 
the system. The...

2-52DHS Installation
B2 voice channel station number is 59 (the adapter’s channel station number plus the 
difference of 48). Use this relationship in numbering to determine the B2 channel 
station number, or simply dial an Executive Key Telephone from the B2 station port 
and read the display.
Figure 2-28: 2-Port Analog Adapter
15. 2-Port Analog Expander 
The 2-Port Analog Expander is a single PCB identical to the PCB of the 2-Port Analog 
Adapter. One 2-Port Analog Expansion may be housed in the 2-Port...

System Check-Out2-53
16. Headset Installation 
The system supports integrated headset operation. Customers may take advantage of 
this standard system feature at any key telephone. Most headsets will operate without 
extra equipment or need for additional steps in user operation.
Installation
1. A headset adapter that uses a toggle switch to select between Headset and Handset 
use is desirable. The headset adapter is plugged directly into the Handset jack. 
2. The telephone handset is then plugged into...

2-54Feature Upgrade Procedure
6. Operate the INITIALIZATION (SW1) to the ON (right) position.
7. Restore system power.
8. Observe the CPU/Power LED. After approximately 4 - 6 sec., the LED should begin to 
flash.
9. If the LED remains unlit or lit without flashing, repeat the above steps from Step 3.
Once the power up sequence is complete, DEFAULT DATA is loaded and the system 
should be fully operational. 
Feature Upgrade Procedure
Use the following procedure to upgrade the DHS system Feature Package...

Feature Upgrade Procedure2-55
Figure 2-29: DHS Components 
SW1 must remain in the ON position following initialization to engage customer database 
RAM memory backup in the event of commercial/utility power outage. RAM backup battery 
charging occurs only when SW1 is in the ON position. The RAM battery requires 14 hr min. 
normal (powered) system operation for adequate charging.
AC Power
Transformer
117/230V AC
Option Module
ConnectorStandard MOH
BGM Module
1/8 in. Phono Jack
for MOH/BGM
CPU Module 3 x 8...

2-56Feature Upgrade Procedure 

3
DHS-E Description
and Installation
The STARPLUS® DHS-E™ Digital Hybrid System is a full-featured digital key
telephone system. The common system architecture supports three digital key
telephone models (refer to 
Chapter 2, DHS Description and Installation, Digital Key
Te l e p h o n e s
) a Direct Station Selector (DSS), and an expandable analog adaptor
interface. The 
DHS-E is designed to meet the telecommunications needs of small to
medium sized business offices.