Vodavi Starplus Sts Key System Installation Manual

BKSU & Main Board Unit Assembly 3-13
Chapter 3 - Installation
Single Line Interface Board (2 Port with built-in Msg Wait)
The Single Line Interface Board (SLIB2) provides the interface to two 2500-type telephones. 
The SLIB signals interface with industry-standard ringers and message waiting lights. The 
2-port SLIB always occupies slot 2 and is standard on the BKSU. It can be removed if necessary 
by the installer.
The two ports provided by this board are connected to SLT devices by using the two RJ11...

3-14Expansion Board Installation
Chapter 3 - Installation
Expansion Board Installation
Boards and daughter boards discussed in this section are optional boards that can be used to 
increase the capacity of your system.
Digital Telephone Interface Board
The optional Digital Telephone Interface Board (DTIB) provides digital voice and data 
communications to/from digital telephones. The DTIB board provides the interface to eight 
digital telephones. The card has one LED to indicate off-hook/in use status....

Expansion Board Installation3-15
Chapter 3 - Installation
Installing CIDU Board to LCOB
1. Unpack the CIDU from its antistatic conductive bag.
2. Locate the CN2 and CN3 connectors on the CIDU.
3. Locate the CN1 and CN2 connectors on the LCOB.
4. Position CN2 and CN3 on the CIDU to align with CN1 and CN2 on the LCOB, respectively.
5. Push the CIDU onto these connectors to seat it securely.
Single Line Interface Board - 4 Port
The optional Single Line Interface Board (SLIB4) provides the interface to four...

3-16Expansion Board Installation
Chapter 3 - Installation
T1 Interface Board
The optional T1IB provides the T1 (1.544Mbps, 24 channel) interface circuit, control circuitry, 
and synchronous clock control circuits. Up to two DTMF tone detection units (DTRU4) can 
optionally be installed on the T1IB.
The system can be equipped with one T1IB and it can be installed in slots 5, 6, or 7 of the BKSU 
or in slots 11, 12, or 13 in the EKSU. The Phase Lock Loop Unit (PLLU) must be installed in the 
BKSU for the...

Expansion Board Installation3-17
Chapter 3 - Installation
The T1IB contains two switches (SW1 and SW3). The clock selection switch (SW3) is used for 
control of synchronous clock. The Line Build-Out switch (SW1) is controlled by the distance 
between the STS system and a CSU and SW1 #4 is used for loopback control.
The Line Build-Out switch setting is based on distance between the STS System and a CSU. The 
proper switch settings are indicated in the following table. If the CSU is located near the KSU,...

3-18Expansion Board Installation
Chapter 3 - Installation

This board supports standard D4 framing format with robbed bit signaling. Extended 
Super Frame (ESF) format with B8ZS is also supported.

The board requires an external CSU unit.

The T1 board can accept two DTRU4 units in a daughter board type arrangement. Each 
unit has four DTMF Receivers installed on it.

The board has an RJ45 connector for connection to a CSU unit.
Functionality Description

Automatic Number Identification (ANI) information...

Expansion Board Installation3-19
Chapter 3 - Installation
Phase Lock Loop Unit
The Phase Lock Loop Unit (PLLU) is an option board 
which generates a 32.768MHz clock synchronized to 
1.544MHz from the T1 interface board or internal 
clock.
This board is required whenever a T1 card is installed in 
the system. The 32.768MHz clock is provided to CGMD 
on MBU. It consists of a PLL circuit, PLL Monitoring 
circuit and clock (from T1 interface board) monitoring 
circuit.
The PLLU is installed in the upper...

3-20Expansion Board Installation
Chapter 3 - Installation
Figure 3-7: PLLU Location
DTMF Tone Detection Units
Refer to “T1IB (24 channel) with two DTRUs” on page 3-16.
Installing the DTRU4 Modules
1. Unpack the DTRU4 modules from their antistatic conductive bags.
2. Locate the CN1 and CN2 connectors on the DTRU4 modules.
3. Locate the CN4, CN5, CN8 and CN9 connectors on the T1IB.
4. Position one of the DTRU4 modules so that the CN2 and CN1 connectors align with the 
CN8 and CN9 connectors on the T1IB...

Expansion Board Installation3-21
Chapter 3 - Installation
Installing the Voice Mail Interface Board
The Flash-Based Voice Mail Card consists of a printed circuit board. It can be installed into
slot 7 in the Basic KSU or slot 13 in the Expansion KSU.
Figure C-8: Flash-Based Voice Mail Card
Installing the Memory Expansion Module
Refer to Figure C-8: Flash-Based Voice Mail Card to locate the proper placement for the 
optional memory expansion module.
Modem Unit
The Modem Unit (MODU) provides an...

3-22Expansion Board Installation
Chapter 3 - Installation
5. Push the MODU onto its connector, making sure it is properly seated.
Figure 3-9: MODU Installation Location
The modem may not always connect at 9600 bps. If you encounter a situation where 
you cannot connect at 9600 bps, change your computer’s baud rate to 4800 bps.
CN13
(Lower Right View of BKSU)