Rs485 Serial And Can Bus; Rs232 Serial - ASL INTERCOM VAR8-ACU Product Description

8.5

RS485 Serial and CAN Bus

RS485
•
2x3 way double stack terminal block (5 mm).
•
Lower terminal block.
•
Serial control connection for interfacing with Remote I/O units (ASL
product: BMB01).
CAN Bus
•
2x3 way double stack terminal block (5 mm).
•
Upper terminal block.
•
CAN Bus Interface to the system amplifiers.
Signal
GND
CANL
CANH
Signal
GND
DXN
DXP
8.6

RS232 Serial

RS232
•
2x3 way double stack terminal block (5 mm).
•
It is internally used for networking. It may temporarily be
disconnected from the network, and then connected to a PC for
configuration purposes.
Signal
RTS
CTS
CTRL
Signal
GND
TX
RX
VAR8-ACU and Variants - Product Description
CAN Bus (Upper Block)
0 V Reference
Controller Area Network (Low). Not used.
Controller Area Network (High). Not Used.
RS485 (Lower Block)
0 V Reference
Data+ (EIA RS485 9600 baud)
Data– (EIA RS485 9600 baud)
Upper Block
EIA RS232 Request to Send
EIA RS232 Clear to Send
EIA RS232 Data Terminal Ready
Lower Block
0 V Reference
EIA RS232 Transmit data (9600 baud)
EIA RS232 Receive data (9600 baud)
Issue: 02 complete, approved
Page 35 of 44
VAR8
Description
Description
VAR8
Description
Description