Vodavi Starplus Dhs/dhs-e Technical Manual

2-18DHS Technical Specification Tables
Table 2-5: Unit Specifications
Part # Description Dimensions Weight
SP7000-00 Basic KSU (
DHS )L
W
H18.4 in.
10.8 in.
4.2 in.460 mm
270 mm
105 mm4.0 Kg
8.8 lb
SP7100-00 3 x 8 Module L
W
H8.6 in.
5.2 in.
0.88 in.215 mm
130 mm
22 mm0.4 Kg
0.88 lb
SP7100-10 6-Port CO Module L
W
H8.6 in.
5.2 in.
0.88 in.215 mm
130 mm
22 mm0.3 Kg
0.66 lb
SP7110-00 Option Module L
W
H8.48 in.
5.6 in.
0.88 in.212 mm
140 mm 
22 mm0.4 Kg
0.88 lb
SP7310-XX
*
* XX Denotes color option: 71 =...

DHS Technical Specification Tables2-19
Table 2-6: Maximum Cable Length
Digital Key Telephone
(Distance measures in linear ft. of cable from KSU 
to DKT.)26 AWG - (850 ft) 255 m 
24 AWG - (1416 ft) 425 m 
22 AWG - (1983 ft) 700 m 
Standard SLT
(Distance measures in linear ft. of cable from KSU 
to SLT. 2-Port CO Module may be placed anywhere 
in between.)26 AWG - (650 ft) 195 m 
24 AWG - (1133 ft) 340 m 
22 AWG - (1586 ft) 476 m 
Table 2-7: Dialing Specifications
DTMF Dialing mode:
Frequency deviation...

2-20DHS Technical Specification Tables
Table 2-9: Audible Signals
Signal Frequency Cadence
CO Line Ringing:
Scheme 0
Scheme 1
Scheme 2
Distinctive 1
Distinctive 2
Distinctive 3
Distinctive 4
SLTN/A
N/A
N/A
SLT bell300 ms On, 400 ms Off, 300 ms On, 4 seconds Off
1 second On, 3 seconds Off
1 second On, 3 seconds Off
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring...

DHS Technical Specification Tables2-21
Table 2-10: Mean Time Between Failure Analysis
Component MTBF (hr)
Case Assembly 100.0
Power Supply Unit 193.0
CPU Module 3095.0
Standard Music On Hold Module 325.7
3 x 8 Module 5744.0
6-Port CO Line Module 7201.2
Option Module 2866.0
Basic Key Telephone 2988.3
Enhanced Key Telephone 4205.3
Executive Key Telephone 4275.3
2-Port CO Module and 2-Port Analog Expansion 5000.9
Method:
Use the figures above for each unit installed (or to be installed) 
and calculate the...

2-22Preparation for DHS Installation
Preparation for DHS Installation
Installation Overview
1. Plan the installation, including the KSU and Main Distribution Frame (MDF) location, 
station locations, cable runs, and optional equipment.
2. Mount a backboard in the designated MDF location.
3. Mount the KSU on the MDF backboard. Use the provided mounting template to aid in 
spacing the mounting screws.
4. Install optional 3 x 8 Modules inside the KSU as required.
5. Install the Option Module if required.
6....

Preparation for DHS Installation2-23
General Site Considerations
The first step of DHS  installation, is to locate an acceptable site for the common 
equipment (KSUs, boards, etc.). When locating a mounting site for the KSUs, the 
following points must be considered:
†KSUs are designed for wall mounting and should not be mounted directly to a 
masonry or plasterboard wall. It is recommended that 1/2 in. plywood backboard be 
firmly mounted to the wall, and the KSU and MDF be mounted to the backboard....

2-24Preparation for DHS Installation
†Six conductor modular jack assemblies for all station instruments (recommended).
†Standard punch-down terminal block(s), 66M1-50 type, as required.
†Industry-standard, 25-pair cable(s) with a 50-pin male amphenol/AMP type 
connector for connection from each equipped 3 x 8 module to the MDF.
†AC voltage surge/spike protector.
†Standard telephone hand tools and mounting hardware for the KSU, MDF backboard, 
punch-down terminal block(s), modular jack assemblies for CO...

DHS Installation2-25
Verify On-Site Equipment
Once the equipment installation site is identified and a dedicated AC outlet, earth 
ground, adequate lighting and ventilation are available, verify that all equipment 
required is on-site and was not damaged during shipping:
†Unpacking the KSU  - The Key Service Unit is shipped in its own protective carton and 
contains the following:
†Basic KSU
†One mounting template
†One System Installation & Maintenance Manual
Open the carton and verify that all items are...

2-26DHS Installation
2. KSU Grounding 
To ensure that the system will operate properly, a good earth ground is recommended. 
The Telco protector ground terminal or a metallic COLD water pipe will usually provide a 
reliable ground path. If cold water pipe is used, carefully check that the pipe does not 
contain insulated joints that could isolate the ground. In the absence of the cold water 
pipe, a ground rod or other source may be used. A No. 8 AWG copper wire should be used 
between the ground source...

DHS Installation2-27
Cautionary Steps
To reduce the risk of fire or injury to persons, read and follow these tips:
†Use only the following type and size battery(ies) listed here as the maximum battery 
type and size: 24vdc, 40 AH.
†Do not dispose of any battery(ies) in a fire, the cell may explode. Check with local 
codes for possible special disposal instructions.
†Do not open or mutilate the battery(ies). Released electrolyte is corrosive and may 
cause damage to the eyes or skin. It may be toxic if...