Figure 32 Wiring A Large Display For U2U Network Operation - Emerson Liebert Challenger 3000 User Manual

Figure 32 Wiring a large display for U2U network operation

Red Crossover
Ethernet Cable
Crossover
Coupler
(See Note 6)
P64A Connection
Located Near
I/O Board
Not
Used
Liebert iCOM
I/O Board
Liebert vNSA
The Liebert vNSA is designed to connect multiple Liebert iCOM control devices. The Liebert vNSA
contains either one or two powered industrial rail switches. An optional remote large display can be
attached to the front door as well. All models have a power supply that requires connection to a single
phase 120V or 240VAC power source. The enclosure features a key lock for security.
The Liebert vNSA supports autonegotiation, autopolarity and autocrossing, allowing for the use of
standard network cables for connection to each port, rather than special crossover cables. The switch
detects and makes adjustments for the network's speed and transmission mode, polarity and trans-
mit-and-receive pins. See the Liebert vNSA user manual, SL-18840, for more details.
The number of ports available for connecting Liebert iCOM control devices varies by model as shown
in Table 12. Models with a remote large display attached to the front door utilize one of the available
Ethernet ports in the Liebert vNSA. Models with two switches utilize two ports to connect the
switches.
Cable 'C'
Installing a Liebert iCOM Unit-to-Unit Network
Optional Large
Graphics Display
(Rear View)
Customer Connection Point
See Note 6
U2U Networking Switch
(Field-Supplied)
Straight-Through
Ethernet Cables
50
CAN
Cable
See Note 4
To / From Other
Networked Units
194273