OBID
i-scan
®
UHF
Integration
ID ISC.MRMU102-A
FEIG ELECTRONIC GmbH
Page 8 of 21
Integration
Manual M21112-1e-
ID-B.docx
4. Connections
The module version of the reader is equipped with an asynchronous RS232 Interface (X2) and a
USB Interface (X3). The Table 2: Connectors shows which connector can be used for the different
interface cable.
Table 2: Connectors
Connector
Description
ANT 1-3
External Antenna ANT 1 - 3
ANT 4
Internal Antenna ANT 4
X1
Power Supply via Connector X1
X2
RS232 Interface on Connector X2
X3
USB Interface on Connector X3
4.1. Antenna Terminals
4.1.1. External Antenna ANT 1 - 3
Three SMA sockets are provided on the circuit board for connecting of the external antennas.
The maximum tightening torque for the SMA socket is 0.45 Nm.
CAUTION:
Higher tightening torque will damage the connector.
Table 3: Connecting an external antenna
Terminal
Description
ANT 1-3
Connecting the external antenna
(input impedance 50
Ω
)
NOTE:
When connecting an antenna, ensure that it does not exceed the permissible limits pre-
scribed by the national regulations for radio frequency devices.
