TiE Businesscom Plus Hardware Manual

							II-4INSTALLING THE  AND CHECKING WIRING
Static
Precautions The 
 are sensitive to static electricity. The
rules below are safe-handling techniques for 
sensitive equipment.
Following them when installing
or maintaining 
 will help you to guard against
static damage.
o Always handle a PCB in the static-free, conductive
bag in which it was shipped. Do not use this bag as
a holder for the PCB when it is outside the bag.
o Do not slide the PCB across a work surface.
o Only surfaces or items at ground potential should
come into contact with 
o Keep work area free of any plastic or metal objects.
o Carefully insert or remove a PCB from the KSU.
Minimizing
Static
Charges
WARNING: BEFORE INSERTING OR REMOVING A PCB, BE SURE
THAT THE SYSTEM POWER IS OFF.
To minimize static charges when installing, removing,
or maintaining 
o Discharge any accumulated body static by touching a
grounded object
o Wear a wrist strap attached to the ground lug of
the KSU.
o Keep foot movement to a minimum.
Installing the 
Factory-Equipped
The BUSINESSCOM PLUS  KSU is shipped with the
following 
 installed (shown in bold print on
Figure 2-7BUSINESSCOM 
 
o the central processor, supports Station
Ports 10 
 17
o 
 supports CO lines 1  3
o 
 provides system-operating software.
 KELLATRONICS, 
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							II-4INSTALLING THE  AND CHECKING WIRING
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Cover
C/O
FIGURE 2-7 BUSINESSCOM  KSU (P/N 15000 or P/N 15001)
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							II-4INSTALLING THE  AND CHECKING WIRING
 
Preparation,
BUSINESSCOM PLUS 
Before installing optional  prepare the 
as
1.
2.
3.
4.
follows:
Strap the battery into place, but do not plug it
into connector CNBT.When the battery is weak or
is not connected,
the letters BAT flash in the
upper right-hand corner of all Display phones.
On switch 
set toggle 1 so that it is opposite
the number 1.
On set toggle 2 so that it is next to the
number 2 for internal Music On Hold 
 or
opposite the number 2 for external MOH. Potentio-
meter VRO adjusts the level of MOH. If external
MOH is desired,see Installing External MOH in
INSTALLING OPTIONAL EQUIPMENT.
When the 
 PCB is required,
o set JO strap to the 2-3 position
o reinitialize the system
o see Installing the 
 PCB in INSTALLING
OPTIONAL EQUIPMENT
If the 
 PCB is not required,
o set JO to the l-2 position
B-MPU- 
 B-TSU-A
Preparation,
BUSINESSCOM PLUS 
Prepare  the  B-MPU- PCB and the B-TSU-A PCB as follows:
1. Strap the battery on the B-MPU- into place, but do
not plug it into connector 
 When the battery
is weak or not connected, the letters BAT flash
in the upper right-hand corner of Display phones.
2. Set the WR switch on the B-MPU- to the initial
(I) position.
3. Set switch SW1 on the B-TSU-A so that it is next
to the number 1 for internal Music On Hold (MOH)
or opposite the number 1 for external MOH.
Potentiometer 
 adjusts the volume level of the
MOH. If external MOH is required, see Music On
Hold in INSTALLING OPTIONAL EQUIPMENT.
The B-STU-, B-COU-, B-XPU-A, and the B-LPU-A 
 may
be installed directly from the box, without any
preparation.
PCB InsertionEach PCB is keyed. To insert a PCB:
1. Place the connector edge into the slot, keeping
the component side of the PCB facing towards your
left.
2. Install the PCB with the thumb of each hand on the
card edge and the fingers on the KSU frame.
3. Push the PCB until firmly seated.
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							II-4INSTALLING THE  AND CHECKING WIRING
BatteryBe sure that the lithium battery is in place but
unconnected.Display phones indicate if the battery
is not connected by flashing the letters BAT in the
upper right corner of the display.
Inserting 
 in BUSINESSCOM PLUS 
 &
To install a  (when only key telephone
circuits are used),
 and/or a  PCB,
refer to Figure 2-7 and Figure 2-8Installing the
B-COU-A PCB, BUSINESSCOM PLUS 
 and connect the
ribbon cables as follows:
Connector
 &   
CNA2 
 &  or  
CNB2 CNB2
   or CNE  CNE
  CNF  CNF
The 
 or B-BSTU-A provides ports 18  21.
The key telephone ports on the 
 are ports 18
and 19.
The OPX ports on the  are ports 20 and 21.
The B-COU-A provides CO lines 4 and 5.
NOTE: The laminated side of the cables connecting
edge has a blue stripe across it.
The unlaminated
side is used as a contacting surface.
Setting
 Set  on the  PCB to the initial
position.
To select internal or external Music On Hold on a
BUSINESSCOM PLUS 
 set  as follows:
Feature
 
Internal MOHPosition 2
External MOHOpposite end of Position 2
,
Potentiometer
AdjustmentsThe following potentiometers on the 
 
are used for making adjustments at the following levels: 
PotentiometerAdjustment
VROMOH Background Level
External Zone output level
VR2Level of BGM
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							II-4INSTALLING THE  AND CHECKING WIRING
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FIGURE 2-8
INSTALLING THE  PCB,
BUSINESSCOM PLUS 
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							II-4INSTALLING THE  AND CHECKING WIRING
Inserting  in the BUSINESSCOM PLUS 
Setting WR Set the WR switch on the B-MPU- PCB to the initial
position.
Setting
 B-TSU-ATo select internal or external Music On Hold on a
BUSINESSCOM PLUS 
 set SW1 on the B-TSU-A
PCB as follows:
Feature
 
Internal MOHPosition 1
External MOHOpposite end of Position 1
Potentiometer
AdjustmentsPotentiometer 
 on the B-TSU-A PCB is used to
adjust the background level for MOH.
(For installation of optional 
 see INSTALLING
OPTIONAL EQUIPMENT)
Measuring
DC Voltage
Normal
VoltagesAfter all the 
 have been checked but before the
stations are connected,measure the DC voltage at
each 625-type station jack.Start your measurements
from the first station.
Approximate
Connect Voltmeter
Green/Red 13 VDC
Black/Yellow 28 VDC
If your voltage readings do not match those in the
table,check the station cabling and wiring from the
Main Distribution Frame 
 block against the in-
formation shown on the 
 sheets at the end of
this section.
When the telephone is installed, the following are
the normal voltages at the AT/AR pair located on the
B Block or 625-type jack:
Status
12.8on hook
7.4off hook
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							INSTALLING OPTIONAL EQUIPMENT
This section provides information on equipment and
accessories required to use optional features.
Installing the B-LBR-A PCB for Loud Bell Relay Operation
Refer to Figure 2-9Installation of B-TBU-D PCB for
B-LBR-A Operation.
Installation
1.
2.
3.
4.
5.
1
Unplug the telephone,
if previously installed.
Remove two screws from bottom of telephone, and
open it.
Remove the existing B-TBU-A/B/C
and replace it with the B-TBU-D
Remove the existing 4-conductor
Replace it with the 6-conductor
the kit.
 Connect:or B-SPDU-A PCB,
PCB.
modular jack.
modular jack from
a.the white lead of the 6-conductor jack to
terminal C on the B-TBU-D PCB
b. the blue lead to terminal 
 on the B-TBU-D PCB
C.the plastic connector of the 6-wire modular
jack to the CNL connector on the B-ANU-A/B
PCB.
2. Install the 4-conductor jumper cable between the
CNO connector on the B-ANU-A/B PCB and the CN2
connector on the B-TBU-D PCB.
3. Reassemble the telephone.
4. Label the set to show that a B-TBU-D is installed.
Refer to Figure 2-10BUSINESSCOM PLUS Loud Bell Relay
Wiring:
1. Replace the standard I-conductor modular line cord
with a 6-conductor modular line cord.
2. Replace the 4-conductor modular jack with a 
conductor modular jack  supplied with
interface kit).
3. Connect 3-pair twisted station cable between the
6-wire modular jack and the station block 
 Block)
at the MDF.
Terminate the 3-pair twisted cable conductors to the
jack as follows:
Cable Conductor
ConductorJack
WHT/BLUGRN
BLU/WHTRED
WHT/ORNBLR
ORN/WHTYEL
WHT/GRNWHT
GRN/WHTBLU
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							INSTALLING OPTIONAL EQUIPMENT       -----
              
______
FIGURE 2-9INSTALLATION OF B-TBU-D 
FOR B-LBR-A OPERATION 
						

							INSTALLING OPTIONAL EQUIPMENT
For any station position
r
66 Block
  I
 --1111GRN 
BCP-LBR
DC INI I
I 
M
C
Make
Common
Break
Make
Common
Break
Station Cable
  
 I
 KSLJSTA  
GRN  WHT
Modular Jack
FIGURE 2-10 BUSINESSCOM PLUS LOUD BELL RELAY WIRING
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							INSTALLING OPTIONAL EQUIPMENT
Installing the B-LBR-A PCB for Loud Bell Relay Operation 
Refer to Figure 2-10BUSINESSCOM PLUS Loud Bell
Relay Wiring.
At the Station 
 Block end:
1. Terminate the 
 and  pairs normally.
Do not install bridging clips.
2. Connect:
o the 
 lead to screw terminal C on the
B-LBR-A box
o the 
 lead on terminal E.
o one pair of cross-connect cabling between the two
L terminals on the B-LBR-A box and each side of
the AT station leads on the B Block, for this
extension.
3. Install bridging clips for the AT, BT, and BR clips
on the B Block.
4. Plug the modular line cord into the 6-conductor
modular jack.
5. Check that the telephone functions.
Two sets of relay connections use terminals M, C, and
B. These sets of connections operate simultaneously.
The relay contacts are rated at 1.25 amps at 24 VDC
for resistive loads.These low power contacts can be
used for an audio source, amplifier-enable  contacts,
or other visual or audible indicators.
M= MAKE =Normally Open
B= BREAK = Normally Closed
c=COMMON
Refer to Figure 2-11
Using the B-LBR-A PCB to Control
an Audio Loud Bell:
1. Connect the 
 AC/DC Adaptor to the connector
markedDC IN on the B-LBR-A box.
2. Plug in the adaptor to a 
 AC outlet.
3. Keeping in mind the operation and adjustment
considerations listed below, test the operation
of the Loud Bell Relay Unit:
o Whenever the telephone rings, the Loud Bell Relay
activates.
o Intercom calls in the Handsfree Answerback Mode
do not activate the B-LBR-A unit.
o Use variable resistor VR on the B-LBR-A unit to
adjust the duration of the B-LBR-A activation.
o When the B-MPU-C PCB (main processor) is in-
stalled in the system,program the extension
equipped with the B-LBR-A Unit for Ringing
Intercom Calls (Program 59 
 Headset Intercom
Option: Ext. No. = XX 
 
o When a ringing signal activates the B-LBR-A,
the LED on the B-LBR-A lights.
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