ABB NE870 - Page 15

3BSE083159 15
Section 2 Interface specications
USB
Electrical
specication
USB 2.0 host
interface
Data rate High speed
480mbit/s
Circuit type SELV
Maximum supply
current
500 mA
Isolation to All other except
Console
Connection USB receptacle
connector type A
Conductive housing Yes
Ethernet TX
Electrical
specication
IEEE std 802.3. 2005 Edition
Data rate 10 Mbit/s, 100 Mbit/s, 1000
Mbit/s, manual or auto
Duplex Full or half, manual or auto
Circuit type TNV-1
Transmission
range
Up to 150 m with CAT5e cable
or better*
Isolation to All other
Connection RJ-45 auto MDI/MDI-X
Shielded
cable
Not required, except when
installed in Railway applications
as signalling and telecommuni-
cations apparatus and located
close to rails*.
Conductive
housing
Yes
No. of ports 3
* 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 protective earth.
Refer to “Safety” section for more information.
IO / Digital input
Voltage levels Vih>8V Vil<5V
Iin=2.9mA @60V
Isolation to All other
Connection Detachable
screw terminal
Connector size 0.2–2.5 mm2
(AWG 24–12)
Maximum voltage 60 VDC
IO / Relay output
Connect
resistance
30 W
Isolation to All other
Connection Detachable
screw terminal
Connector size 0.2–2.5 mm2
(AWG 24–12)
Maximum
voltage/current
60 VDC/80 mA