Emerson Liebert ICOM-DO Installation Manual download pdf (Page 26)

Liebert iCOM Control

Figure 18 Wiring a large display for U2U network operation

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 6. 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.

Liebert iCOM

I/O Board

Straight-Through

Ethernet Cables

CAN

Cable

See Note 4

Large Graphics Display

(Rear View)

To / From Other

Networked Units

U2U Networking Switch

(Field-Supplied)

194273

1 ... 25 26 27 ... 88

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Emerson Liebert ICOM-DO Installation Manual Page 26