Wiring; Interface Signals And Wiring Method - Hitachi IR.LINK User Manual

3.4 Wiring

3.4.1 Interface signals and wiring method

LQE546
N1
N1
Ground
terminal
IR.LINK
MODU
TX
No.
RX
ERR
BIT
RATE
TERM
A
B
SG
SHD
NOT
USED
NOT
USED
NOT
USED
NOT
USED
NOT
USED
FG
Network 1 (N1)
Signal name
Abbreviation
A Send/receive data
(Linkage data)
B
Grounding for signal
SG
(Signal Ground)
Grounding for shield
SHD
(SHielD ground)
Terminating resistor for
TERM transmission/reception
(TERMinal resistor)
Others
Signal name
Abbreviation
Grounding for frame
FG
(Frame Ground)
Interface signal voltage levels
Designation
Interpretation 1/OFF
Output condition -6 to -1.5 V
Input condition -0.2 V or lower 0.2 V or higher
The input condition represents the electric potential
of A viewed from B.
Short TERM and A terminal when the IR.LINK
module is used at an end of the network. The
terminating resistor (120 ohms) is internally
connected.
3-5
3 MOUNTING AND WIRING
Name
Name
Mark
0/ON
1.5 to 6 V
Space