HST HM201-SC User manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS
HM201-SC
Addressable Short Circ it Isolator Mod le
SPECIFICATIONS
Nominal Operating Voltage:: 15 to 28 VDC
Short Circuit Current Limitation >700 mA @ 2 VDC
Short Loop Resistance <50Ω
Operating Humidity Range: 10% to 93% Relative Humidity, Non-condensing
Operating Temperature Range: -10°C to50°C
Dimension: 120 mm L x 80mm W x 3mm H
Weight: 175 g
INSTALLATION WIRING
Terminal Description
T1 - Loop Input+
T15- Loop Input-
T3- Loop Output+
T2- Loop Output-
BEFORE INSTALLING
This information is included as a quick reference
installation guide. Refer to the control panel installation
manual for detailed system information. If the modules
will be installed in an existing operational system, inform
the operator and local authority that the system will be
temporarily out of service. Disconnect power to the
control panel before installing the modules.
NOTICE: This manual should be left with the
owner/user of this equipment.
GENERAL DESCRIPTION
The Short Circuit Isolator Modules enable part of the
communications loop to continue operating when a short
circuit occurs on it. An LED indicator turns on during a
short circuit condition. The module will automatically
restore the entire communications loop to the normal
condition when the short circuit is removed.
L + L -
L O O P I N P U T +
L O O P I N P U T -
L O O P O U T P U T +
L O O P O U T P U T -
L + L -
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Compatibility Requirements
To ensure proper operation, this module should only be
connected to a compatible control panel.
Mounting and Wiring
NOTE: This module is intended to be wired and mounted
without rigid connections inside a standard electrical box.
All wiring must conform to applicable local codes,
ordinances, and regulations.
1. Connect the loop input(+) and loop input (–) wires to
the Terminal 1 and Terminal 15.
2. Connect the loop (+) output and loop output (–) wires
to the Terminal 3 and Terminal 3.
3. Install the module in the desired mounting location