Metrohm 731 Relay Box - Manual (Page 19)

2.4 Connections
Relay Box 731, Instructions for use 13
2.4.3 The 731 Relay Box and remote lines
Linear 1:1 cable Remote cable
6.2125.100 e. g. 6.2141.020 e.g. 6.2141.020
One instrument
(Master) sets output
lines via remote
socket
Remote
In
Remote
Out
Output 0
Output 1
Output 2
...
...
Input 2
Input 1
Input 0 Output 0
Output 1
Output 2
:::
...
Input 2
Input 1
Input 0
AC1
AC2
DC1
DC2
One instrument re-
ceives input signals
via remote socket.
The remote signals
are not influenced by
the 731 Relay Box.
The Relax Box 731 scans the output lines and switches
the outputs AC1, AC2, DC1, DC2 accordingly.
The signals of the remote lines are transmitted to an
additional instrument connected to the 'Remote Out'
socket.
2.4.4 Connection cable
Remote In
Cable 6.2125.100 is required to control the 731 Relay Box. This ca-
ble leads the output lines (Output 0…14) linearly (i.e. pin to pin) to
the remote input (Remote In) of the 731 Relay Box, which interprets
(scans) the remote lines and switches the defined outputs accord-
ingly.
Remote Out
The remote lines pass through the instrument linearly and can be
further used at the 'Remote Out' socket. The normal remote cable
can be used here for connection to other instruments. In Metrohm
remote cables the different remote leads are wired crosswise in or-
der to make the bi-directional remote control of instruments possi-
ble. The pins of the logical output lines of plug A are connected to
the corresponding pins of the input lines of plug B and vice versa.