NEC Door Box 92245 User manual
L
C
T
T
LF
To Door Chime Box 1 Rear view
To Door
Chime Box Relay
21
22
23
24
Misc Block
Holes for
mounting screws
82400-56
123
Cross-
Connect
to 66M1-
50 Block
The Door Box (P/N 92245) is a self-contained Intercom unit typically used to monitor an entrance door. A visitor at the door can press
the Door Box call button (like a door bell). The Door Box then sends chime tones to all extensions programmed to receive chimes.
Your Door Box unit could be either of the designs shown at right. For installation, refer to the figure that applies to your Door Box.
Installing a Door Box
1. Locate an available 2-pin connector in a miscellaneous block.
2. For the connector chosen, cross-connect the associated wire pair
from the miscellaneous block to the cross-connect block.
3. Connect leads from the lugs on the Door Box (numbered 1 and 2 on
the figures at right) to the cross-connect block. Be sure to maintain the
proper polarity.
4. Install bridging clips as required.
5. For system connections, refer to the section that applies to your system.
6. Refer to the system’s installation manual for relay connections, if required.
Door Box (P/N 92245) Installation
1
5
6
L
C
T
T
234
LF
To Door Chime Box 1 Rear view
To Door
Chime Box 2
21
22
23
24
* typical installation
RED-BRN
BRN-RED
RED-SLT
SLT-RED
*
*
Misc Block
Holes for
mounting screws
920-159A
Design A
L
C
T
T
LF
To Door Chime Box 1 Rear view
To Door
Chime Box Relay
21
22
23
24
Misc Block
Holes for
mounting screws
82400-56
123
Cross-
Connect
to 66M1-
50 Block
Design B
Misc.
Block
- over -
cable to system
connection (DDK
connector on PCB for
Portrait 824 and 28i/124i,
48FU connector for
384i/704i systems)
Portrait 824
Each Auxiliary PCB supports two Door Boxes. In addition, you can connect each circuit’s 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.
1. Loop the cable from the miscellaneous block once through a ferrite bead
(supplied with the Auxiliary PCB) then plug the DDK connector into the
Door Box (1 or 2) connector on the Auxiliary PCB. The first Door Box is
labeled DH1 on the PCB. The second Door Box is labeled DH2. If using
both Door Boxes, loop both cables through the same ferrite bead.
Note: The ferrite bead should be placed as close as possible to the PCB.
2. Use VR3 or VR4 to adjust the volume of the Door Box. VR3 corresponds
to Door Box 1, VR4 corresponds to Door Box 2.
3. Refer to the system’s software manual for programming information.
28i/124i Each PGDU PCB audio output can optionally support an analog Door
Box. In addition, you can connect each circuit’s control relay to an elec-
tric 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. The system can have up to eight Door Boxes.
NOTE: A PGDU circuit used for an analog Door Box cannot also be
used for External Paging.
1. Plug the DDK connector into the Door Box (1-4) connector on the
PGDU PCB.
2. Make sure the switch for the associated Door Box is set to DH (not
PG).
3. Use VR1-VR4 on the PGDU PCB to adjust the volume of the Door
Box (e.g., VR1 corresponds to Door Box 1).
4. Refer to the system’s software manual for programming information.
384i/704i
Each 4PGDU PCB audio output can optionally support an analog Door Box. In
addition, you can connect each circuit’s 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. The system can
have up to eight Door Boxes. NOTE: A 4PGDU circuit used for an analog Door
Box cannot also be used for External Paging.
1. Make sure the switch for the associated Door Box is set to DH (not PG).
2. Plug the 16-pin filter cable into the CN1 connector on the 4PGDU PCB.
3. Plug the opposite end of the 16-pin filter cable into a 48FU connector.
4. Use VR1-VR4 on the 4PGDU PCB to adjust the volume of the Door Box
(e.g., VR1 corresponds to Door Box 1).
5. Refer to the system’s software manual for programming information.
P/N 92245INS02
Issue 1-0
NEC America Inc., Corporate Networks Group
4 Forest Parkway, Shelton, CT 06484
TEL: 203-926-5400 FAX: 203-929-0535
cng.nec.com April 2001
Printed in U.S.A.
92001 -43
Page/Door Box (PGDU) PCB
Mode Switches
for each circuit
Door Box / External Page
Volume Controls
DH
CN3
CN4
DH DH DH
PG PG PG PG
1
2
3
4
VR1
Door Box 4 - External Page 4
Door Box 3 - External Page 3
Door Box 2 - External Page 2
Door Box 1 - External Page 1
Control Relay 4
Control Relay 3
Control Relay 2
Control Relay 1
VR2
VR3
VR4
92000 - 15
CN1
CN2
VR1
VR2
VR3
VR4
Door Box and
Paging Circuits Page/Doorbox PCB
Fax and Alarm
Sensors
Status LED
(Normally flashing)
Door Box/External Paging Zone
1 Volume Control
Door Box/External Paging Zone
2 Volume Control
Door Box/External Paging Zone
3 Volume Control
Door Box/External Paging Zone
4 Volume Control
Use non-metallic
alignment tool
To 48FU
Filter Unit
To 48FU
Filter Unit
DH
Door Box/
Page Circuit 1
Door Box/
Page Circuit 2
Door Box/
Page Circuit 3
Door Box/
Page Circuit 4
DH
PG
External Page
Circuit Door Box
Circuit
PG
PGDU PCB
4PGDU PCB
