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HP JG221A Installation Manual: Pin Assignments

A3100 v2 switch series a3100-8 v2 si switch, a3100-16 v2 si switch, a3100-24 v2 si switch, a3100-8 v2 ei switch, a3100-16 v2 ei switch, a3100-24 v2 ei switch, a3100-8-poe v2 ei switch, a3100-16-poe v2 ei switch, a3100-24-poe v2 ei switch.
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Figure 48 Crossover cable
Crossover cable

Pin assignments

Select an Ethernet twisted pair cable according to the RJ-45 Ethernet interface type on your device. An RJ-45
Ethernet interface can be MDI (for routers and PCs) or MDIX (for switches). For the pinouts of RJ-45 Ethernet
interfaces, see
Table 28 RJ-45 MDI interface pinouts
Pin
1
2
3
4
5
6
7
8
Table 28
and
Table
29.
10Base-T/100Base-TX
Signal
Tx+
Tx-
Rx+
Reserved
Reserved
Rx-
Reserved
Reserved
1
white/orange
orange
2
white/green
3
4
blue
5
white/blue
6
green
white/brown
7
8
brown
1
white/green
green
2
3
white/orange
4
blue
5
white/blue
6
orange
7
white/brown
8
brown
1000Base-T
Function
Signal
Send data
BIDA+
Send data
BIDA-
Receive data
BIDB+
BIDC+
BIDC-
Receive data
BIDB-
BIDD+
BIDD-
52
Function
Bi-directional data
cable A+
Bi-directional data
cable A+
Bi-directional data
cable B+
Bi-directional data
cable C+
Bi-directional data
cable C
Bi-directional data
cable B
Bi-directional data
cable D+
Bi-directional data
cable D-

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