NEC UX5000, Hardware Manual, Page: 219 / 334

Chapter 4 - Terminals and Optional Equipment
Chapter 4 4 - 25
S
ECTION
4-7
EXTERNAL PAGING AND DOOR BOX/PAGE RELAYS
4.7.1
External Page Relays
Four external dry contact relays are available when a 2PGDAD is installed which can be used to activate
ancillary devices (i.e. door unlock devices). When the relay on the 2PGDAD is used, there is no need to assign
the relay to the Door Box - simply connect the relay as detailed in the steps below for the Door Box used. The
relays on the 2PGDAD modules are numbered 5-8. Each Door Box/external page circuit provides a dry relay
contact.
4.7.2
Door Box /External Page Relay Contacts (Figure 4-15)
4.7.2.1 To connect a dry contact relay device to a Door Box/External Page Relay:
1. Connecting to the 2PGDAD Module:
Make sure the jumper in the 2PGDAD module for the channel is set correctly. (Refer to Figure
4-4
JUMPER SETTINGS on page 4-5).
2. If a line cord was not previously connected to the 2PGDAD, complete Steps 3-6. Otherwise,
skip to Step 7.
3. Install a modular jack for each 2PGDAD module. For each module, run one-pair 24 AWG
station cable from the cross-connect block to a modular jack. Ground the unused pair.
4. Terminate the extension leads to GRN/RED of the modular jack. Terminate the unused leads
to the jack.
5. Install bridging clips as required.
6. Plug a modular line cord from the mod jack to the CN1 connector on the 2PGDAD module.
7. Connect the two-conductor station cable from the CN5 connectors within the 2PGDAD module
to the external relay.
The relay closes when the Door Box/external page zone is called. The
maximum applied voltage is 24vDC at .5A for each contact.