Sunny RFGuard System - Remote Unit (RU) with 4 x Relay Input, 4 x
Relay Output – Electric Type
Model: RFG-ZDW-4I4O(E)
RFG-ZDW-4I4O(E) uses dry contact of relay input interfaces to detect on/off condition of external input
devices. The input activation can generate remote alarm to Master Unit (MU), and change on/off condition of
relay output interfaces to control external devices based on the pre-set logic combination of relay inputs.
Both RFG-ZDW-4I4O(E) and external devices are isolated between each other to keep their physical and
electrical independence.
For long term operation, stability is the key success factor. The hardware design can work properly with
critical environment in EMC, safety and IP65 condition. In addition, the design implements watch dog and
standby battery to let the hardware work safety. Also the polling feature between MU and RU can make sure
the communication link under healthy condition.
Highlight

Support 4 x NC/NO Relay Inputs and 4 x NC/NO Relay Outputs

Relay Output supporting different logic combination from Relay Input

Remote alarm and polling by SMS / Wireless data / Ethernet

Back up battery, IP65, EMC, Safety protection for long term operation

Implement watch dog to avoid abnormal operation
Block Diagram
IP65 Cabinet
Relay I/O Board
Local
Control
Remote control,
monitoring or alarm
report by Ethernet
2-pair relay inputs (Normal Open)
USB port
2-pair relay inputs (Normal Close)
Ethernet
port (Opt)
2-pair relay outputs (Normal Open)
2-pair relay outputs (Normal Close)
RFG-ZDW-4I4O(E)
Modem
for SMS/
wireless
data
Back up
battery
AC/DC
PSU
Fixed Antenna for Modem
Remote control, monitoring or alarm
report by SMS or wireless data
220V AC
___________________________________________________________________________________________________________
Sunny Telecom Services Limited, Unit 09, 15/F, Block B, Hi-tech Industrial Centre, 5-21 Pak Tin Par Street, Tsuen Wan, Hong Kong
Web Site: www.rfancillaries.com, Tel: +852-2611-9016 Fax: +852-2611-9397
Specification
Relay input
Input Trigger mode
Relay output
Output Trigger mode
Relay outputs status when All power OFF
Internal modem supporting frequency
bands
Nos of SIM card
Local control interface
Remote control
Internal battery
Waterproof
Power supply
Maximum power consumption
Size
Operating temperature
Relative humidity
Weight
Normal open x2, Normal close (Ground) x2
Max. 5VDC, 1A not damage
Level Trigger
Normal open x2, Normal close x2
Max. 60VDC, 2A not damage
No AC Power
No Battery Power
Logic (AND/OR/NAND/NOR) Combination of Relay Inputs
Back to default status
850/900/1800/2100/2600MHz GSM, WCDMA and LTE
One
USB (inside cabinet)
SMS (standard)
Wireless data (option: RFG-WD)
Ethernet (option: RFG-ETH)
7.2V 2200mAh Li-ion
IP65 cabinet
220V AC
≤20W
TBAL
-20 to +60°C
5 to 95%
7kg
Ordering Information
RFG-ZDW-4I4O(E) - Remote Unit (RU) with 4 x Relay Input, 4 x Relay Output, Electrical Version
Option:
RFG-WD – Remote Control by RF modem (wireless data)* (Fixed IP needed for MU)
RFG-ETH –Remote Control by Ethernet*
*Order either option only
Technical data are subjected to change without notice – File: RFG-ZDW-4I4O(E) datasheet 2017V1.0
___________________________________________________________________________________________________________
Sunny Telecom Services Limited, Unit 09, 15/F, Block B, Hi-tech Industrial Centre, 5-21 Pak Tin Par Street, Tsuen Wan, Hong Kong
Web Site: www.rfancillaries.com, Tel: +852-2611-9016 Fax: +852-2611-9397