Slot 3, 10/100 Mbit/s
Position
Direction*
Description
1
In/Out
TD+
2
In/Out
TD–
3
In/Out
RD+
4
In/Out
Not connected
5
In/Out
Not connected
6
In/Out
RD-
7
In/Out
Not connected
8
In/Out
Not connected
Shield
In/Out
Connected to
Functional earth
* Direction relative this unit.
+DC1
+DC2
COM
COM
RSTP
FRNT
VPN
ON
DC1
DC2
1
2
1
1
10/100/1000
10/100/1000
10/100 Base-TX
POWER
CONSOLE
IO
2
3
4
5
6
7
8
2
3
4
1
5
6
7
8
2
3
4
Slot 1 and 2, 10/100/1000 Mbit/s:
Position
Direction*
Description
1
In/Out
BI_DA+
2
In/Out
BI_DA–
3
In/Out
BI_DB+
4
In/Out
BI_DC+
5
In/Out
BI_DC-
6
In/Out
BI_DB-
7
In/Out
BI_DD+
8
In/Out
BI_DD-
Shield
In/Out
Connected to
Functional earth
* Direction relative this unit.
Section 2 Interface specifications
SFP Slot
Each SFP slot can hold one SFP transceiver for copper or fibre cable. Fibre
transceivers distances range from 550 m (0.34 mi) to 120 km (74.6 mi). For
supported transceivers, see SFP data sheet.
Figure 8. SFP Slot
16
3BSE080639
Figure 7. TX Ports
Summary of Contents for NE840
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