HP JG221A Installation Guide

52
Figure 48 Crossover cable
Crossover cable
white/orange
orange
white/green
green
white/orange
orange
white/green
blue
white/blue
green
white/brown
brown
1
2
3
4
5
6
7
8
blue
white/blue
white/brown
brown
1
2
3
4
5
6
7
8
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 and Table 29.
Table 28 RJ-45 MDI interface pinouts
Pin
10Base-T/100Base-TX
1000Base-T
Signal
Function
Signal
Function
1
Tx+
Send data
BIDA+
Bi-directional data
cable A+
2
Tx-
Send data
BIDA-
Bi-directional data
cable A+
3
Rx+
Receive data
BIDB+
Bi-directional data
cable B+
4
Reserved
—
BIDC+
Bi-directional data
cable C+
5
Reserved
—
BIDC-
Bi-directional data
cable C
6
Rx-
Receive data
BIDB-
Bi-directional data
cable B
7
Reserved
—
BIDD+
Bi-directional data
cable D+
8
Reserved
—
BIDD-
Bi-directional data
cable D-

HP JG221A Specifications

General

Brand	HP
Model	JG221A
Category	Switch
Language	English