Nitsuko Portrait 308 Hardware Manual

							EXTERNALPAGING AND PAGE RELAYS
Using External Paging
The Auxiliary PCB has one External Paging audio output
and one associated control relay. You connect the audio out-
put to the audio input on customer-provided paging systems.
In some paging systems, you can use the control relay to
automatically turn the amplifier on and off. The control
relay is normally opened and closes whenever a user calls
the External Paging zone.
Installing External Paging and Page Relay (Figure 4-4)
CAUTION
Be sure the audio input requirements of the paging equipment
are compatible with the audio output specifications of the sys-
tem.
Output Impedance: 600 Ohms
Output Level: Nominal 250 mV(-10 dBm)
Maximum Output: 400 mVRMS
Minimum Initial Contact Resistance:  50 mOhms
Relay Contact: 250 mA@ 24 VDC
1.Locate an available 2-pin DDKconnector in an auxiliary
(C)block.
2.For the DDKconnector chosen, cross-connect the associ-
ated wire pair from the C block to the cross-connect block.
3.Install bridging clips as required.
4.Connect the lead to the paging system audio input.
5.Plug the DDK connectors into the Auxiliary PCB. One
connector is plugged into the connector on the PCB
labeled SPK, the other goes to CTR.
6.Adjust the volume level of the External Zone by turning
the VR1 control (also labeled SPK).
4-5
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							EXTERNALPAGING AND PAGE RELAYS
4-6Figure 4-4  CONNECTING EXTERNAL PAGING/RELAY
Figure 4-5  CONNECTING EXTERNAL PAGING
One-Pair Cross-Connect
DDK 
Connector To External Page
audio output on 
Auxiliary PCB
25-Pair DDK
Installation CableC Block
Cross
Connect
BlockOutput to
paging
system
control
inputs
82400 - 10
One-Pair Cross-Connect
DDK 
Connector To Control Relay
on Auxiliary PCB
25-Pair DDK
Installation CableC Block
Cross
Connect
BlockOutput to
paging
system
control
inputs
82400 - 9
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							EXTERNALPAGING AND PAGE RELAYS
4-7 Figure 4-6  CONNECTING CONTROL RELAYS TO THE
AUXILIARYPCB
82500 - 13
Auxiliary PCB
DH2 DH1 EXMOH SPK CTR RL2 RL1(DH2)(DH1)(SPK)
VR4VR3VR1
ARM (MOH)
EXT
INT
SW1
Amplifier Paging Speaker
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							DOOR BOX
4-8
Using the Door Box
Each Auxiliary PCB supports two Door Boxes. In addition,
you can connect each circuitÕs control relay to an electric door
strike. This allows an extension user to remotely activate  the
door strike while talking to a visitor at the Door Box. The
control relays are normally open.
Installing a Door Box 
(Figure 4-7)
1. Locate an available 2-pin DDK connector in an auxiliary
(C) block.
2. For the DDK connector chosen, cross-connect the associated
wire pair from the C block to the cross-connect block.
3. Connect leads from lugs 1 and 2 on the Door Box to the
cross-connect block. Be sure to maintain the proper polarity.
4. Plug the DDK connector into the Door Box (1 or 2) con-
nector on the Auxiliary PCB. The first Door Box is labeled
DH1 on the PCB. The second Door Box is labeled DH2.
5. Install bridging clips as required.
6. Use VR3 or VR4 on the CPU to adjust the volume of the
Door Box. VR3 corresponds to Door Box 1, VR4 corre-
sponds to Door Box 2.
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							DOOR BOX
4-9 Figure 4-7  CONNECTING A DOOR BOX
15
6 L
C
T
T
234LF
To Door Chime Box 1Rear view
To Door
Chime Box 221
22
23
24
* typical installation
RED-BRN
BRN-RED
RED-SLT
SLT-RED*
*
Misc Block
Holes for
mounting screws
920 - 159A
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							DOOR BOX
4-10
Installing Door Strike Control Relays(Figure 4-8)
CAUTION
Be sure the requirements of the door strike are compatible
with the control relay output specifications of the system.
Contact Configuration: Normally open
MaximumLoad: 250 mA@ 24 VDC
Maximum Initial Contact Resistance: 50 mOhms
1.Locate an available 2-pin DDK connector in an auxiliary
(C) block.
2.For the DDK connector chosen, cross-connect the associ-
ated wire pair from the C block to the cross-connect
block.
3.Connect two leads from the door strike to the associated
terminals on the cross-connect block.
If the door strike is a high current device, you may
have to install an auxiliary relay that powers the
door strike relay.
4.Plug the DDK connector into the Auxiliary PCB connec-
tor labeled RL1 or RL2.  RL1 controls the door strike
relay for Door Box 1, RL2 controls Door Box 2.
5.Install bridging clips as required.
6.  In Program 56 assign a relay to a door box.
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							DOORBOX
4-11 Figure 4-8  CONNECTING TO THE DOOR STRIKE
Figure 4-9  CONNECTING DOOR BOX/DOOR STRIKE RELAYS TO
THE AUXILIARYPCB
82500 - 12
Auxiliary PCB
To Door Strike
Terminals
DH2 DH1 EXMOH SPK CTR RL2 RL1(DH2)(DH1)(SPK)
VR4VR3VR1
ARM (MOH)
EXT
INT
SW1
Door Box
One-Pair Cross-Connect
DDK 
Connector To Control Relay
on Auxiliary PCB
25-Pair DDK
Installation CableC Block
Cross
Connect
BlockOutput to
door strike
82400 - 8
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							MUSIC SOURCES
4-12
Music on Hold
Music on Hold (MOH) provides music to callers on Hold.
The systemÕs default setting provides an internal (synthe-
sized) MOH music source, or a customer-provided music
source connected to the Auxiliary PCB can be used instead.
There are two jumpers that determine whether or not the
system will play Music on Hold.  The first jumper is located
on the CPU and is labeled SW2.  This jumper should be set
to the ON position.  If it is not, it overrides the setting of the
SW1 jumper on the Auxiliary PCB (3DHEXU-A).
Installing a Music Source on the Auxiliary PCB
(Figure 4-10)
CAUTION
Be sure the music source is compatible with the MOH input
specifications on the CPU PCB.
Input Impedance: 600 Ohm
Input Level: Nominal 250 mV(-10 dBm)
Maximum Input: 1VRMS
1.Locate an available 2-pin DDK connector in an auxiliary
(C) block.
2.For the DDK connector chosen, cross-connect the associat-
ed wire pair from the C block to the cross-connect block.
3.Connect two leads from the customer-provided music source
to the associated terminals on the cross-connect block.
4.Plug the DDK connector into the EXMOH input on the
Auxiliary PCB.
5.  Set the SW1 (MOH) jumper on the Auxiliary PCB to the
EXTposition. Make sure the SW1 jumper on the CPU is
set to the ON position. If synthesized MOH is desired,
set the SW1 (MOH) jumper on the AuxiliaryPCB to the
INTposition.
6.  Install bridging clips as required.
7.Adjust the volume for the MOH on the external source.
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							MUSIC SOURCES
4-13 Figure 4-10  CONNECTING MUSIC SOURCES
Figure 4-11  CONNECTING TO THE AUXILIARY PCB
82500 - 11
External MOH Source Auxiliary PCB
The relay contacts
RL1 and RL2 can be
used as a MOH
device control. The
remote control terminal
on the device must be
connected to these
contacts (see
PROGRAM 56).
DH2 DH1 EXMOH SPK CTR RL2 RL1(DH2)(DH1)(SPK)
VR4VR3VR1
ARM (MOH)
EXT
INT
SW1
82500 - 3
One-Pair Cross-Connect
To MOH on
Auxiliary PCBTo
music
source
DDK
Connector25-Pair DDK
Installation CableC BlockCross
Connect
Block
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							CALLER ID
4-14
Using the Caller ID Feature
Each Auxiliary PCB supports the use of Caller ID on the
three CO lines in the system.  Caller ID allows a display key-
set to show an incoming callerÕs telephone number and/or
name with the time and date on the phoneÕs display.  The
callerÕs information can be checked before answering an
incoming call.  The information received by the system
depends upon the capabilities of your local telco.
Connecting Caller ID (Figure 4-12)
1.With two 2-pin DDK connectors (one connected on each
end of the cable), make a jumper cable about 8Ó in
length.  If more than one Caller ID line is to be connect-
ed, make a jumper cable for each line.
2.  For the first line, plug one end of the jumper cable into
the COCN1 connector labeled Ò4Ó on the Caller ID PCB.
Repeat this step for lines 2 (COCN2) and 3
(COCN3).
3.  Plug the opposite end of the jumper cable into the COCN
connector labeled CO1 on the CPU.
Repeat this step for lines 2 (CO2) and 3 (CO3).
4.  For each trunk, run one pair of wires from the COCN1
connector labeled Ò1Ó on the Caller IDPCB to a 625
modular jack, which then connects to the telcoÕs RJ11C
jacks using a standard line cord (Figure 4-12 on the fol-
lowing page).
Repeat this step for lines 2 (COCN2) and 3
(COCN3).
5.  Connect a grounding cable from the ETH terminal on the
Caller IDPCB to the ETHCN terminal on the CPU.
6.  Remove the knock-out panel from the main cover that is
located next to the CO connectors on the CPU.
7.  Run the wires for the telco connection through one of the
knockouts located on the bottom of the base cabinet.
8.  Replace the covers on the cabinet.
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