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GSM-KEY OPERATING INSTRUCTIONS
PRODUCT DESCRIPTION
WAFER GSM-KEY is an electronic board with an on-board GSM modem.The purpose of
this device is to open an electric gate by means of a GSM phone.It has a door open relay whose
contact has to be connected in parallel with the button which opens the gate. It has a White List of
numbers who are enabled to open the phone, up to 2000. When the GSM-KEY receives a call, it
will check to see if the calling number is in the list. If it is in the list it will reject the call (so there
will be no charge -at least with today's charging procedures) and click the relay momentarily.
Also GSM-KEY has two alarm input port for the security detection.
CONNECTOR DESCRIPTION
ADVANTAGES OF WAFER GSM-KEY
ˇ 2000 Number memory.
ˇ No call charges to operate.
ˇ No line rental using 'Pay as You Go'.
ˇ Open gates prior to arriving.
WAFER GSM-KEY REMOTE CONTROL UNIT
1. 3G/GSM module LED (D6)
2. MCU LED (D4)
3. SMS Status LED (D2)
http://www.waferstar.com
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