Specifications
UDACT Instruction Manual PN 50050:H 09/16/2002
13
Specifications
DC Power
24VDC (nominal) filtered, non-resettable and power-limited. Voltage range is 21.2 to 28.2 volts. DC
Power at terminal block TB1 (+, –) is 40 mA in standby, 75 mA maximum while communicating and
100 mA with the open collector output engaged and communicating.
Data Communications
EIA-485 Serial Interface, terminal block TB1 (RS+, RS–, Shield, RS+, RS–). Power-limited source
must be used. The terminals marked “TERM RS+, RS–” are for future use.
Auxiliary Output
TB3 Communicator Failure. An Open Collector type output, normally high, active low which sinks up
to 40 mA. TB3 (+24V) = 21.2 to 28.2 volts, power-limited. Use UL listed relay P/N: MR-101/C or
MR-201/C with this output.
Telephone Requirements and Warnings
Telephone Circuitry
Ringer Equivalence Number (REN) = 0.6B
AC Impedance 10.0 Mega Ohm
Complies with FCC Part 68
Mates with RJ31X Male Connector
Supervision Threshold: less than 4.0 volts for 2 minutes
The REN is used to determine the quantity of devices which may be connected to the telephone line.
Excessive REN on the telephone line may result in the devices not ringing in response to an incoming
call. In most, but not all areas, the sum of the REN should not exceed five (5.0). To be certain of the
number of devices that may be connected to the line, as determined by the total REN, contact the
telephone company to determine the maximum REN for the calling area.
Digital Communicator
Before connecting the UDACT to the public switched telephone network, the installation of two RJ31X
jacks is necessary. The following information is provided if required by the local telephone company:
Manufacturer:
Notifier
12 Clintonville Road
Northford, CT 06472
Product Model Number:
UDACT
FCC Registration Number:
1W6USA-20723-AL-E
Ringer Equivalence:
0.6B
The FCC ID label is located on the inside of the door of the host panel
or
The FCC ID label is located on the inside cover of the remote backbox.
Note:
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