15
W&T
RS232(/RS422/RS485) Multi Computer Adapter
Subject to error and alteration
baudrate
S2
S3
S4
S5
150 Baud
off
off
off
off
300 Baud
ON
off
off
off
600 Baud
off
ON
off
off
1200 Baud
ON
ON
off
off
2400 Baud
off
off
ON
off
4800 Baud
ON
off
ON
off
9600 Baud
off
ON
ON
off
19200 Baud
ON
ON
ON
off
38400 Baud
off
off
off
ON
57600 Baud
ON
off
off
ON
64000 Baud
off
ON
off
ON
76800 Baud
ON
ON
off
ON
115200 Baud
off
off
ON
ON
Modes
The RS232 Multi Computer Adapter model 85603 offers
four operating modes, which are described in the following.
In all operating modes the LEDs „A“ and „B“ on the front panel
of the Multi Computer Adapter are used to indicate which data
path is currently active.
Manual mode
The simplest of all operating modes enables manual toggling
of the bi-directional connection between Port A and Port C or
between Port B and Port C.
Pressing the key below LED A opens path Port A <> Port C,
whereas pressing the key below LED B activates the path
Port B <> Port C. After the selector switch is reset the Port A <>
Port C channel is always active. LEDs A and B indicate which
channel is active.
The selector switch uses a handshake signal ir an XIFF
character to automatically block data flow on the non-active
channel.
