ABB NE840, User Manual

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Ethernet TX
Electrical specification
Data rate
Duplex
Circuit type
Transmission range
Isolation to
Connection
Shielded cable
Slot 3
12
13
14
15
16
17
18
19
10/100 Mbit/s, TX port
10/100 Mbit/s, TX port
10/100 Mbit/s, TX port
10/100 Mbit/s, TX port
10/100 Mbit/s, TX port
10/100 Mbit/s, TX port
10/100 Mbit/s, TX port
10/100 Mbit/s, TX port
Conductive housing
IEEE std 802.3. 2005 Edition
Slot 1 and 2: 10 Mbit/s, 100 Mbit/s, 1000 Mbit/s, manual or auto
Slot 3: 10 Mbit/s, 100 Mbit/s manual or auto
Full or half, manual or auto
TNV-1
Up to 150 m with CAT5e cable or better
All other
RJ-45 auto MDI/MDI-X
Not required, except when installed in Railway applications as
signalling and telecommunications apparatus and located close to
rails*
Yes
Section 2 Interface specifications
TX Ports: Slot 1 and 2: 10/100/1000 Mbit/s, Slot 3: 10/100 Mbit/s
* Note: Railway installation close to the rails. To minimise the risk of interference, a shielded cable is recommended when
the cable is located inside 3 m boundary to the rails and connected to this port. The cable shield should be properly
connected (360°) to an earthing point within 1 m from this port. This earthing point should have a low impedance
connection to the conductive enclosure of the apparatus cabinet, or similar, where the unit is built-in. This conductive
enclosure should be connected to the earthing system of an installation and may be directly connected to the
functional earth. Refer also to
Safety section.
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