dn-3404:b • 11/17/09 — Page 1 of 2
UZC-256
Universal Zone Coder
Software Release 2.0
Annunciator Control Systems
dn-3404:b • D-140
General
The UZC-256 Universal Zone Coder enables the Notifier intel-
ligent fire alam control panels (FACPs), network control annun-
ciators (NCAs) and compatible legacy systems to provide
positive non-interfering successive zone coded outputs. Up to
256 separate codes may be programmed to operate on the
three coded outputs. Each output is used to code or pulse up
to 3 Amps of Notification Appliance power.
Features
• Coded output from the UZC-256 can be fed to multiple out-
put circuits.
• Up to 256 individually programmed codes.
• Three 3-Amp outputs.
• Programmable rounds of code (1 to 99 rounds).
• Up to four digits per round.
• Up to 15 pulses per digit of code.
• Optional general alarm.
• Programmable code and round(s) delay.
• Programmable pulse and digit pause times.
• Connects and communicates over panel EIA-485 interface.
• Programmable for California code.
• Weight 1.75 lbs.
Release 2.0 Features
• Secondary UZC use: counting alarm operation activates
UZC relays after specified number of alarms.
• Programmable address EIA-485 range (1-32).
• No code/counting selection for non-fire points.
Applications
The UZC-256 provides three outputs that supply unique coded
information to certain output circuits, depending on the alarm
initiation condition. This can be useful when employing coded
outputs in floor-above, floor-below applications, or to provide
various numbers of rounds for bell circuits and strobe or lamp
circuits.
NOTE: Due to the nature of coded outputs, the UZC-256 is not
compatible with notification devices which do not produce a steady
or non-periodic sound. Periodic appliances that produce their own
code (such as some codes available with electronic sounders) will
not be compatible with the UZC-256. Refer to the UZC-256 Instal-
lation Manual for a list of compatible panels.
Construction & Operation
The UZC-256 provides three coded output relays, each rated
for three amps at 30 VDC. These relays are controlled by a
predefined program, and can be set to respond to general
alarm conditions with the fire alarm system.
The UZC-256 and the CPU use the EIA-485 circuit for commu-
nication. When installed, the zone coder has a programmable
address on the EIA-485 interface.
Assignment of points to zone codes within the UZC-25 is pro-
grammable in the NFS2-3030, NFS2-640, NFS-320 and NCA-
2 (see programming manuals for details).
Electrical Specifications
Standby current: 35 mA.
Alarm current: 55 mA.
Installation
Locate the system, including components and peripheral
equipment in the following nominal environment:
Temperature: 60° to 80°F (15.6° to 26.7°C).
Relative humidity: 40% to 60% (non-condensing).
Agency Listings and Approvals
In some cases, certain modules or applications may not be
listed by certain approval agencies, or listing may be in pro-
cess. Consult factory for latest listing status.
•UL Listed: S624
•ULC Listed: CS118/CS733/CBP696
•MEA: 289-91-E Vol. III; 290-91-E Vol. III; 291-91-E Vol. II;
17-96-E; 345-02-E; 232-06-E
•CSFM: 7165-0028:141; 7165-0028:144; 7165-0028:157;
7165-0028:181; 7165-0028:214 (NFS-640); 7165-0028:224
(NFS-3030); 7170-0028:153; 7170-0028:154; 7170-
0028:182; 7170-0028:216 (NFS-640); 7170-0028:223
(NFS-3030, NFS2-3030), 7165-0028:243 (NFS2-640)
•FDNY: COA #
•Lloyd’s Register: 93/60/40 (E2) (AM2020/AFP1010)
•FM Approved
UZC-256 Universal Zone Coder
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