K-Patents PR-21-S - Manual (Page 110)

104 PR-21-S instruction manual
PROCESS INSTRUMENTS PROCESS INSTRUMENTS
POWER POWER
Hub/Switch
Check hub/switch manual
for Ethernet cable type
Figure 11.3 Connecting a DTR to a hub or a switch.
PROCESS INSTRUMENTS PROCESS INSTRUMENTS
POWER POWER
WLAN
Access
point
Check WLAN manual
for Ethernet cable type
Figure 11.4 Connecting DTR to WLAN.
If you need a longer cable or the environment is electrically noisy, use fiber optics
Ethernet with media converters (Figure 11.5).
PROCESS INSTRUMENTS PROCESS INSTRUMENTS
POWER POWER
Fiber Media
converter
Media
converter
Check media
converter manual
for Ethernet
cable type
Figure 11.5 Using fiber optics Ethernet.
11.1.2 Connecting the Ethernet cable
To connect the Ethernet cable to the DTR, open the DTR’s enclosure cover, loosen
the front panel screw and open the front panel. The Ethernet connector is behind
the front panel, see Figure 11.6. Plug one end of an appropriate Ethernet cable
into the connector. Plug the other end into your PC/LAN socket/hub/switch/ac-
cess point.
!
Warning! While it is possible to connect and disconnect the Ethernet cable when
the DTR is powered on, for your safety we recommend that you turn off the power
(by unplugging the power supply cord or turning off the power from an external
power switch) before opening the DTR’s front panel.
Note: The DTR has automatic speed negotiation, i.e. it will automatically find
out what the optimal speed for the connection is and choose accordingly either
10 Mbit/s or 100 Mbit/s speed.