RHOMBUS 105 User manual

Contents
Rhombus105 Extended Range Reader
Instruction Manual
Section1 Introduction
Section2 Features
Section3 Specification
Section4 Interface
Section5 Trouble Shooting

1. Introduction
The Rhombus105 is a low cost and high performance proximity reader for reading ID code from uem4100 compatible read-only tags. The
Rhombus105 reader features an extended reading range up to 1000mm. It is ideally suited to be applied in automatic parking system, personal
identification, access control and production control systems etc.
2. Features
High sensitivity and reliable performance;
Built-in transceiver antenna for maximum performance;
Maximum effective distance up to 1000mm;
Less than 100ms decoding time;
Low power dissipation with single power supply;
Support RS485 interface;
Built-in buzzer;
Built-in external LED control;
Potted for environmental protection.
3. Specifications
Power Requirements
Interface
+12Volts linear regulated DC at 200mA typical, 250mA max.
RS-485
Typical Maximum Read Range Range 1000mm with ISO card
in ideal conditions
Frequency
Transponder
Audio/visual Indication
125KHz typical
Read Only
Buzzer output with external
LED control

4. Interface
Color
Red +12VDC
Black GND
Green R+
White R-
Description
Yellow External LED control(Internal 2K pulled-up)
Brown Reserved
Blue Reserved
Grey Reserved
5. Trouble Shooting
When powered up, the Rhombus105 take a self-test to ensure the best reading performance with the buzzer beeping continually.When the
self-test ends, the buzzer will give out a long beep and the Rhombus105 enter the normal working mode. If the buzzer continue beeping without
stop for a long time, please turn off the power and check out the enviroment and power supply to ensure locating the Rhombus105 in a good
working condition. In case of problems the following procedure should be followed:
Failure to finish self-test with the buzzer beeping continually or with a short reading distance
1) Turn off the power to the Rhombus105;
2) Check the power input connections making sure that they are not reversed;
3) Check the power supply complying with the specification;
4) If the supply has a current limit, set this to 350mA;
5) Make sure to install the Rhombus105 in a environment without large area conductors nearby or mounting on a conductive surface. In self-test
state, do not apply any tags in Rhombus105’s functional area;
6) Try to change the installment of the Rhombus105 to another place to check if the trouble still exists;
Note: Rhombus’products must work with linear regulated power supply, and other kinds of power supply are prohibited.