YSI IQ SensorNet 2020 XT Terminal - Manual (Page 70)

Installation System 2020 XT USB
3 - 40 ba76019e01 12/2012
Note
In the MIQ/TC 2020 XTmultiparameter measuring transmitter, the SN
terminator switches of the two MIQ modules are set to ON in the
delivery state. This is the correct setting provided that the system is not
further branched. In the case of additional branching, the SN terminator
switches must be newly set.
Example of determining
the main line
The following figure shows the length of the main line L made up of the
partial lengths L1, L2 and L3 as the cable section L4 is shorter than L3:
Length of the main line = L1 + L2 + L3
Fig. 3-27 Example of determining the length of the main line
Terminator switch Terminator switches are located in each MIQ module between the two
SENSORNET connections on the right of the terminal strip
(designation "SN TERMINATOR"):
L1
= 150 m L4 = 200 m
L2 = 200 m L3 = 300 m
MIQ/PS
MIQ/24V
C M S ESC OK
MIQ/TC 2020 XT << LAB