Siemens DataNET Hub (DNH) User Manual page 41

DataNET Copper Connections,
Downlink Wiring without
Signal Equalizer Board
+ Important
2000585-001
Continued
Each of the four downlink connectors (TB15, TB16, TB17, TB18) contain
wring terminals for two downlink ports; see Figure 2-1.
Always ensure that the same port number is used for redundant channel
connections i.e. Channel A to Port 1 on 'A' Hub and Channel B to Port 1
on 'B' hub.
Step
1. Connect the downlink signal wires to a hub downlink port.
Positive to (+) terminal; and Negative to (-) terminal.
2. If conduit is used the cable shield is only terminated at one
end of the cable. If shield is terminated at this end connect
this shield to GND terminal. If using cable gland connectors,
cable gland will always connect the shield to the chassis.
Action
Master Port
Connectors
TB15 – TB18
Installation • • • • 33