Gemalto M2M GmbH BGS5 Manuel D’Utilisation
Cinterion
®
Java Terminals Hardware Interface Overview
3.7 Ethernet Interface
32
EHSxT_BGS5T_HIO_v01
2014-02-26
Confidential / Preliminary
Page 25 of 41
EHS5T‘s RS-485 interface is based on the TIA/EIA-485 standard defining electrical character-
istics of drivers and receivers for use in balanced multidrop communication systems. RS-485
is used in a lot of different fieldbus systems like Profibus, Interbus, Modbus and P-net.
istics of drivers and receivers for use in balanced multidrop communication systems. RS-485
is used in a lot of different fieldbus systems like Profibus, Interbus, Modbus and P-net.
RS-485 uses a shielded twisted pair cable where the shield is used as ground return, and the
inner pairs are used for balanced communication. The two conductors in each pair are called
A and B. RS-485 is usually half-duplex.
inner pairs are used for balanced communication. The two conductors in each pair are called
A and B. RS-485 is usually half-duplex.
Data transmission speed depends on the length of the RS-485 bus cable and may be up to
115kbps.
115kbps.
3.7
Ethernet Interface
TBD.