RST Flexi-Mux Instruction Manual
ELM0029B
RST Instruments Ltd.
Page 5
F
IGURE
4-3
C
ONNECTOR DETAIL
The cable grips are spring loaded and require a small screwdriver to be inserted into the
centre to retract the spring. Once retracted, insert the wire into the round hole and
remove the screwdriver. The spring will grasp the wire.
The five, 5-pole terminal blocks are connection points for the shielded multiplexed sensor
signals destined for the datalogger analog inputs (Section 5.3). The 5-pole blocks have
screw clamps and are rated to accept 14-28 AWG wire. Each sensor line is connected to
a quick-connect terminal block with an integrated stress release system. The tab is
designed to accommodate a tie-wrap to hold the lead wires. The connectors are designed
to be easily disconnected, giving the flexibility to switch or move sensors. Lead wires are
attached using a standard screw terminal on each block. Pin locations are numbered from
the top down, with the shield located in the centre. Ensure that connections are made in
this order.
All terminal blocks are modular and socketed, allowing them to be unplugged. This
provides the flexibility of being able to switch out and entire mux or switch the locations of
instruments without having to rewire.
5
O
PERATION
Section 5.1 describes the terminals that control the operation of the multiplexer. These
terminals are located in the 18-pin terminal block labelle
d “5” attached to the MUX in
Figure 4-1. Section 5.2 discusses the use of the DIP switch settings which control the
behaviour of the measurement terminals.