Vodavi Starplus Sts Key System Installation Manual

							Installation Overview3-3
Chapter 3 - Installation
Installation Overview
Basic Process
As with any sophisticated communications device, installation of the STARPLUS STS System 
requires the care and forethought of a competent technician. To assure easy servicing and 
reliable operation, several factors must be considered when planning the system installation.
The following procedures are provided to help ensure a successful system installation:

Site Preparation

KSU and Power Supply (PS) Installation

PCB Installation

System Wiring

Keyset and Terminal Installation

Basic Installation Check-Out

System Programming and Verification
To install the STARPLUS STS System as quickly and efficiently as possible, complete the 
following detailed instructions as described.
Site Preparation
General Site Considerations
The first step 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:
Wall Mounting -- The KSUs are designed for wall mounting and should not be mounted 
directly to a masonry or plasterboard wall. It is recommended that a minimum of ½-inch 
plywood backboard be firmly mounted to the wall, and the KSU and MDF be mounted to the 
backboard.
Dedicated Access -- The location must have access to a dedicated 110 Volt AC (±10%), 60 Hz, 
single-phase circuit with a circuit breaker or fuse rated at 15 amps. A 3-wire parallel blade 
grounded outlet should be within approximately 6 feet of the lower left rear of the BKSU 
mounting.
Grounding -- The location must have access to a good earth ground, such as a metallic cold 
water pipe without non-metallic joints. The ground source should be located as close as 
possible to the system.
Environment -- The system should be located in an area that is well ventilated with a 
recommended temperature range of 68°-78° F and a relative humidity range of 5-60%
(non-condensing). 
						

							3-4Site Preparation
Chapter 3 - Installation
Distance Parameters -- The system location should be within 25 feet of the telephone 
company’s termination point. Also, the location should be within the prescribed station loop 
lengths for all keysets and terminals. If existing cabling is used, its location and conduits should 
be considered. Station wiring should be in the building. Station ports are not designed for 
installation outside of the building.
Accessibility -- The location should have adequate accessibility, space, and lighting for future 
servicing and should consider the need for future expansion.
Hazard Protection - - The sy stem sho uld be lo cated in  an area that is protected from  f loo din g, 
flammable materials, excessive dust and vibration.
Interference -- The site should be away from radio transmitting equipment, arc-welding 
devices, copying machines, and other electrical equipment that are capable of generating 
electrical interferences. Operation of this equipment in a residential area is likely to cause 
interference. In which case the user, at his own expense, is required to take any necessary 
measures to correct the interference.
Backboard Installation
Material -- A wooden backboard is recommended for all installations and must be installed 
when the location has masonry or plasterboard walls. A minimum of ½-inch plywood material 
is sufficient for most installations.
Placement -- The backboard should be mounted at a convenient height, about three feet 
above the floor and be bolted in various places to distribute the weight of the system.
Clearance -- Space should be available on the bottom side of the backboard for the MDF 
cabling and for optional equipment such as a music source, battery backup, etc.
System Layout -- It is recommended that the location of each major item be roughly sketched 
on the backboard as an installation layout.
Verify On-Site Equipment
Once the equipment installation site is identified and a dedicated AC outlet, earth ground, and 
lighting and ventilation are available:
1. Verify that all equipment required is on-site and was not damaged during shipment.
2. Unpack the KSUs to assure there is no shipping damage.
3. Notice that a mounting template is packed with the BKSU; this template is required later 
in the installation.
4. Check that the type and quantity of boards received is correct and optional equipment 
and a Power Line Surge Protector are on-site.
It is not necessary to unpack the individual boards at this time.
If any equipment is damaged or missing, notify the appropriate personnel to 
correct the situation. 
						

							KSU Mounting3-5
Chapter 3 - Installation
KSU Mounting
The STARPLUS STS Sy stem c onsists  of a Basic  Key  S ervic e Un it (BKS U ) cabinet . W hen  additiona l 
CO lines and stations are needed, the Expansion Key Service Unit (EKSU) cabinet must be 
mounted above the BKSU. Both units have been designed to be compact and lightweight for 
easy handling during installation.
Basic Cabinet
The BKSU consists of a plastic frame and cover designed for wall mounting. The KSU must NOT 
be mounted on a masonry or dry-wall surface; a wooden backboard is required.
A mounting template is included with the BKSU. This template can be used to drill pilot holes 
for mounting screws. Note that the template provides screw hole locations for the BKSU and 
EKSU. The BKSU is mounted with three #10 or larger, 1½ inch or longer screws.
1. Drill pilot holes in the locations marked.
2. Insert the screws and tighten, leaving about ½ inch exposed.
KSU Template
Mounting the BKSU
11 1/2”
4  5/8”
11 1/8”
4/8” 3/8”
1/4”
15”
4 
 1
/8
”
3 
 1/
4
” 3 
 3/
4
” 
						

							3-6System Preparation
Chapter 3 - Installation
Expansion Cabinet
The EKSU consists of a plastic cover and frame designed for 
wall mount installation.
» » »  The EKSU must be
 mounted above the BKSU.
After positioning the EKSU above the BKSU:
1. Attach the EKSU to the BKSU on both sides, using the 
four screws and two brackets provided.
2. Mark the location of the two screws to mount the 
BKSU.The EKSU must NOT be mounted on a masonry 
or dry wall surface; a wooden backboard is required. 
The EKSU is mounted with two #10 or larger, 1½ inch or 
longer screws.
3. Drill pilot holes in the two locations marked, insert 
screws and tighten, leaving about ½”.
4. Mount the EKSU on the screws and tighten the screws 
securely.
Interconnection is achieved via an amphenol-type 
connector and power cable, both included. The amphenol 
connector connects the EKSU to the BKSU on the left side 
through connectors labeled EXP.
System Preparation
KSU Grounding
To ensure proper system operation and for safety purposes, a good earth ground is required. 
A metallic COLD water pipe usually provides a reliable ground. Carefully check that the pipe 
does not contain insulated joints that could isolate the ground. In the absence of a COLD water 
pipe, a ground rod or other source may be used.
A #12 insulated AWG or larger copper wire should be used between the ground source and the 
KSU (BKSU and EKSU, respectively). The wire should be kept as short as possible (recommended 
25 feet or less).
Grounding Instructions
1. Remove about 1½ inches of insulation from both ends. Attach one end of the wire to the 
Ground Lug on the lower side of the BKSU and on the lower side of the EKSU by inserting 
the wire under the lug screw, then tighten the screw securely.
2. Attach the other end of the wire, as appropriate, to the ground source.
3. Take a DC resistance reading and an AC volt reading between the chassis ground point 
(cold water pipe) and AC ground (third wire AC ground). The limit is 5V AC and 5 Ohms DC 
resistance. If a higher reading is obtained, choose a different chassis ground point and 
repeat this step until a suitable ground point is found.
To ensure proper grounding … make sure to use the brackets provided when 
attaching an EKSU to the BKSU.
Expansion KSU
Basic KSU 
						

							System Preparation3-7
Chapter 3 - Installation
Built-in Power Supply
The built-in Power Supply in each BKSU and EKSU will convert 105V- 129V AC power to +5V DC 
voltage output. The power capacity of the Power Supply is as follows:
Battery Backup Unit Installation
The Battery Backup Unit (BBU) provides 
power for the system during a power failure. 
The BBU connects to the STS via the 
connector on the side of the BKSU.
Battery Backup Wiring
If local AC power fails, the system can be 
equipped to operate from external batteries. 
The external batteries must provide 24 Volts 
DC. This is generally accomplished by 
connecting two 12-volt batteries to the strip 
connector on the front of the BBU as shown.
 The BBU provides charging current to the batteries during normal AC power operation at a 
maximum of about 0.5 amp. During battery operation, the BBU discontinues battery operation 
if AC power is restored or the battery voltage is too low to maintain proper system operation.
System Backup Duration
The length of time the system operates on the batteries is dependent on several elements 
including: battery charge state, condition of the batteries, capacity of the batteries, and the size 
of the system (number of station ports).
The following chart gives the approximate backup time for several system sizes and different 
battery capacities in ampere-hours.
System Battery Replacement - WARNING
In most cases … the system battery will never need to be replaced.
However, in the event that the battery is determined to be fully discharged, use caution when 
replacing as it could explode if installed improperly.
» Replace battery with a similar battery type, as recommended by battery manufacturer.
» Dispose of the used batteries according to the battery manufacturer’s instructions.
+5V DC -5V DC +30V DC Battery Backup
2.5A 0.5A max 2.5A max External 4B-BBU
PortsBattery Capacity
10AH 20AH
416 Hours 32 Hours
88 Hours 16 Hours
164 Hours 8 Hours
BBU
Ba tt eryBattery+ -- +
RedBl ue
24VDC
12VDC 12VDC 
						

							3-8System Preparation
Chapter 3 - Installation
Power Line Surge Protection
The AC outlet should be equipped with a power surge protection device or UPS. Systems using 
such devices are more resistant to damage from power line surges than unprotected systems. 
Power line surges often occur during normal operations and during violent thunderstorms.
Installation of a surge protector meeting the specifications described in the following 
paragraph may prevent or minimize the damage resulting from power line surges.The isolation 
transformer/surge protector should be: 15 amp self-contained unit that plugs into a standard 
grounded 117V AC wall outlet. The wall outlet must be designed to accept a 3-prong plug (two 
parallel blades and a ground pin). The protector should be fast and capable of protecting 
transients greater than 200 volts.
Lightning Protection
The system provides secondary protection per UL 1459 specifications. Primary protection 
circuitry is the installer’s responsibility and should be installed per National Electric Code (NEC).
KSU AC Power Plug
Before plugging the KSU power cord in the AC source (grounded, 3-prong AC outlet required):
1. Verify the power switch of the BKSU is off.
2. Plug the KSU power cord into the AC outlet.
3. Turn the power switch on.
Cable Connections
Champ connectors are mounted on the 
side of each STS BKSU and EKSU - one for 
CO and Miscellaneous connections, one 
for Station connections, and one to 
connect the BKSU and EKSU. Champ 
connectors include the following:

Ferrite Core -- to improve the line 
burst immunity on the Champ 
connector.

Cable Tie -- to secure the Ferrite 
Core to the Champ connector.
To EKSU
Ferrite Core
Cable Tie
Champ Connectors
To CO
or Misc To Sta 
						

							System Preparation3-9
Chapter 3 - Installation
PCB Handling and General Installation
The system cards contain digital circuitry which are extremely reliable, but can be damaged by 
exposure to excessive static electricity. When handling PCBs, a grounded wrist strap should be 
used to protect boards from static discharges. Also, use common sense when handling PCBs.
EXAMPLE -- Do not place a PCB in locations where heavy objects might fall on the PCB and 
damage components.
Inserting a PCB
1. Hold PCB with components facing left, align top and bottom edge of PCB in card guides.
2. Slide the card into the system seat the PCB firmly into the backplane connector.
3. To remove a PCB, reverse the process.
Card Slot Configuration
Board Capacity
The following types of expansion boards may be installed to increase the Station and CO 
capacity of the STS System:
DO NOT install or remove any boards with power applied.
Make sure power is turned off prior to installation or removal of the PCBs
Board Description System Capacity
LCOB 4 Loop CO Start Lines
(includes Caller ID)up to 24 CO lines
DTIB 8 Digital Telephone Ports up to 48 stations
SLIB4
SLIB24 Single Line Ports
2 Single Line Portsup to 20 stations
2 stations
T1IB 24 Channels --
VMIB 8 Voice Mail Ports -- 
						

							3-10System Preparation
Chapter 3 - Installation
Card Slot Positions
This illustration shows the designated slot number for each type of board that can be mounted 
in the BKSU and EKSU.
IMPORTANT -- Make sure to place the correct board in the appropriate card slot.
EKSU 
BKSU 
   Slot 2
 
   Slot 3
 
   Slot 4
 
   Slot 5
 
   Slot 6
 
   Slot 7
 
   Slot 8
 
   Slot 9
 
   Slot 10
 
   Slot 11
 
   Slot 12
 
   Slot 13
 
Card Slot Board
8DTIB / SLIB4
9DTIB / SLIB4
10 DTIB / SLIB4
11 LCOB / T1
12 LCOB / T1
13 LCOB / T1 / VMIB (
Flash- or Pentium-based)
Card Slot Board
0DTIB (
fixed)
1LCOB (
fixed)
2SLIB2 - 2 port (
default)
3DTIB / SLIB4
4DTIB / SLIB4
5LCOB / T1
6LCOB / T1
7T1 / VMIB (
Flash- or Pentium-based) 
						

							BKSU & Main Board Unit Assembly 3-11
Chapter 3 - Installation
BKSU & Main Board Unit Assembly
The BKSU includes the fixed DTIB in slot 0, a fixed LCOB in slot 1, and a SLIB2 in slot 2. This 
provides an initial capability of four CO lines, eight digital telephone stations, and two single 
line telephone stations. Additional cards/boards can be added to increase capability.
The BKSU provides the following miscellaneous features:

1 external page port that is connected to a transformer, providing a 600-ohm impedance.

1 music input that is connected to a transformer, providing a 600-ohm impedance.

1 independent dry relay contact rated at 1 amp, 24V DC.

2 DTMF receivers.
These features are provided through the CO amphenol “Champ” connector on the right side 
of the BKSU. These features are controlled by system software.
Main Board Unit
The Main Board Unit (MBU) is installed in the BKSU at the factory before the shipment. The MBU 
contains a lithium dry cell to maintain memory and real-time clock functions.
The MBU can be equipped with 3 daughter boards: MODU for modem access to the system, 
PLLU, and CIDU for Caller ID (refer to “Expansion Board Installation” on page 3-14). System 
software is contained on two chips labeled U1 and U2.
The battery is soldered to the MBU and connected to the circuitry by an ON-OFF dip switch 
(SW4).
» Make sure that dip switch SW4 is turned to ON before programming the system database.
Initialize Default Settings
Before programming the system, switch 8 (SW5) should be placed in the ON position and 
powered off and on to initialize the system database to default.
Retain Database
Once the database is initialized, switch 8 (SW5) should be placed in the OFF position to protect 
the database. The following diagram shows the dip switch position as they relate to the 
“database” functions:
MBU PCB
MarkingDip Switch
PositionFunction
87654321
SW8OFF
ONRetain the database
Flush the database OFF
 
ON
 
						

							3-12 B KS U  & Ma in  B o a rd Un it A sse mb l y
Chapter 3 - Installation
Digital Telephone Interface Board (built-in)
The MBU of the BKSU contains a built-in Digital Telephone Interface Board (DTIB) which 
provides digital voice and data communications to/from digital telephones. The DTIB 
provides the interface to eight digital telephones. The built-in DTIB is non-removable and 
does not physically resemble the optional DTIB. It is located in slot 0 on the MBU. The location 
of slot 0 is an “L” shape that runs vertically along the left side of slot 7 and horizontally across 
the base of the MBU. Additional DTIBs can be installed to expand the capacity for digital 
telephones. Refer to “Digital Telephone Interface Board” on page 3-14.
Loop Start CO Interface Board (with Caller ID)
The built-in Loop Start CO Interface Board (LCOB) supports up to four Loop Start Central Office 
Lines and comes equipped with a Caller ID Unit (CIDU) to detect Caller ID information. The
built-in LCOB is non-removable and does not physically resemble the optional LCOB. It is 
located in slot 1 on the MBU. The location of slot 1 is in the upper right section of the BKSU.
The CIDU provides four Caller ID interfaces for the Built-In LCOB.
Additional LCOBs can be added to provide for increased Loop Start CO Line capability. Refer to 
“Loop Start CO Interface Board (with Caller ID)” on page 3-14.
Figure 3-1: Built-In LCOB with CIDU
Installing CIDU to Built-In LCOB
The CIDU may already installed when you receive your BKSU. If not, use the following procedure 
to install the CIDU:
1. Unpack the CIDU from its antistatic conductive bag.
2. Locate the CN2 and CN3 connectors on the CIDU.
3. Locate the CN18 and CN19 connectors on the built-in LCOB.
4. Position the CIDU so that the CN2 and CN3 connectors align with the CN18 and CN19, 
and connectors on the built-in LCOB respectively.
5. Push the CIDU onto these connectors to seat it securely.
(Upper Right section of BKSU shown above)
CIDU
CN 19
CN 18
CN 2CN 3
Built-In LCOB