Hach sc1000 Manuale Utente
39
Installation
9. If necessary, set the terminating resistor.
Note: When using the connector with the last module on the network segment, one union nut
remains unused. Seal the union nut with the plug supplied. Refer to
remains unused. Seal the union nut with the plug supplied. Refer to
10. If this connector is the end of the network, insert the rubber seal in the connector.
11. Tighten the union nut by two turns.
12. Insert the sealing plug in the unused union nut and rubber seal.
13. Tighten the union nut.
14. Set a terminating resistor at the last network connector to the ON position (see
and
).
15. Plug the connector into the probe module.
Note: If the network connector is terminated, 2A and 2B are set to off.
Figure 29 Removing the insulation from the communication cable
1
Cable, 2-conductor
3
Circuit card/bottom shell, cable, and cable clamp
subassembly
subassembly
2
Connector, (network connector printed circuit board) 4
Network cable installed in connector
Table 10 Communication connector terminal assignments
Connection
Cable
Signal
Length
1A
Incoming or last device
A
25 mm (1 in.)
1B
Incoming or last device
B
2A
To further devices
A
35 mm (1.4 in.)
2B
To further devices
B