GST DC-9503E User manual

30310469 Issue 1.04
Features
Isolation of short circuit, automatic restore when
short circuit is cleared.
Maximum output current is 1A.
DIN-Rail mounted or Wall mounted.
Standard: EN 54-17:2005
Description
In fire alarm system, such condition often occurs that
partial short circuit of loop affects the whole system.
DC-9503E Loop Isolator（hereinafter referred to as the
isolator）can isolate the shorted circuit from the whole
system to ensure normal operation of other devices
and help locate the devices in fault. After the short
circuit fault is cleared, those devices will be
re-introduced into the system.
The isolator is suitable for use in the loop of
addressable fire alarm system.
Connection & Cabling
Terminals of the isolator are shown in Fig. 1.
Fig.1
(I+, I-) IN & OUT: input signal loop, I+ is positive and I-
is negative.
O+, O-: output signal loop, O+ is positive and O- is
negative.
Recommended Wiring: 1.0mm2 or above twisted pair.
Wires should not be laid out in the same conduit or
raceway with Class 1 wires such as power cables,
high and low voltage distribution cables and so on.
Installation
1) Before installation, make sure the enclosure is in
good condition and markings are complete.
2) The isolator can be mounted on a 35mm
DIN-Rail as shown on Fig. 2.
3) The isolator can also be wall mounted by 4
mounting screws as shown in Fig. 3. Mounting
space is 67mm.
Fig. 2
Fig. 3
Application
System connection is shown in Fig. 4. Note: Terminals
of the isolator have polarities.
2831-CPR-F2019
GST-0017-01
18
548n/05
DC-9503E
Loop Isolator

30310469 Issue 1.04
Fig. 4
Specification
Operating Voltage
Loop: 24VDC (16V - 28V)
Power Limited
Standby Current
≤ 0.15mA
Action Current
≤ 1.5mA
Capacity
Maximum 70 devices
Indicator
Yellow, flashes in standby
state, steady in fault.
Wiring
Two wire
Maximum Line Voltage
( VMAX)
28V
Minimum Line Voltage
( VMIN)
16V
Maximum Continuous
Current( IC MAX)
1A
Maximum Transient
Output Current( IS
MAX)
5A
Maximum Open
Voltage （VSO MAX)
11V
Minimum Open
Voltage( VSO MIN)
8V
Maximum Close
Voltage( VSC MAX)
4V
Minimum Close
Current( VSC MIN)
1.4V
Maximum Leakage
Current( IL MAX)
7.5mA
Max closed
impedance ( ZC MAX)
0.15Ω
Operating
Temperature
-10°C - +55°C
Relative Humidity
≤ 95%, non-condensing
Ingress Protection
Rating
IP30
Material and Color of
Enclosure
ABS, white (RAL9016)
Compatible DIN-Rail
35mm DIN-Rails
Dimension (L×W×H)
78mm×45.3mm×28.5mm
Weight
About 41.4g
Limited Warranty
GST warrants that the product will be free from defects
in design, materials and workmanship during the
warranty period. This warranty shall not apply to any
product that is found to have been improperly installed
or used in any way not in accordance with the
instructions supplied with the product. Anybody,
including the agents, distributors or employees, is not
in the position to amend the contents of this warranty.
Please contact your local distributor for products not
covered by this warranty.
Product warnings and disclaimers
THESE PRODUCTS ARE INTENDED FOR SALE TO,
AND INSTALLATION BY, AN EXPERIENCED
SECURITY PROFESSIONAL. UTC FIRE &
SECURITY CANNOT PROVIDE ANY ASSURANCE
THAT ANY PERSON OR ENTITY BUYING ITS
PRODUCTS, INCLUDING ANY “AUTHORIZED
DEALER”, IS PROPERLY TRAINED OR
EXPERIENCED TO CORRECTLY INSTALL
SECURITY RELATED PRODUCTS.
For more information on warranty disclaimers and
product safety information, please check
https://firesecurityproducts.com/policy/product-warnin
g/ or scan the following code:
This Data Sheet is subject to change without notice. Please contact GST for more information or questions.
Gulf Security Technology Co., Ltd.
No. 80, Changjiang East Road, QETDZ, Qinhuangdao, Hebei, P. R. China 066004
Tel: [phone] Fax: [phone]
service.gs[email protected].com www.gst.com.cn