Eight-Wire Straight-Through Cable Rj45 Pinouts, Connections Between Switches And End User Devices - Enterasys MATRIX 7H4385-49 Hardware Installation Manual

Figure 3-8 Eight-Wire Straight-Through Cable RJ45 Pinouts, Connections
Between Switches and End User Devices
1 RJ45 device port
2 Other device port
f. Ensure that the twisted pair connection meets the dB loss and cable specifications
outlined in the Cabling Guide. Refer to "Related Documents" in About This Guide
for information on obtaining this document.
If a link is not established and it is connected to a PD (Powered Device), check the PoE
Port Status to ensure that there is 48 Vdc power at the 7H4385‐49 RJ45 port. Refer to
"Verifying PoE Port Status" on page 3‐19. If there is still a problem, contact Enterasys
Networks. Refer to "Getting Help" on page xviii for details.
4. Repeat steps 1 through 3 above, until all connections have been made.
Verifying PoE Port Status
If a PD is connected to the 7H4385‐49 RJ45 port, ensure that there is power at the RJ45 port
as follows:
1. Press on the GROUP SELECT switch for more than one second. The 7H4385‐49 will
enter the PoE status mode, which will indicate a set of power status conditions
relating to the PoE Port Status.
2. Now, every time you press the GROUP SELECT switch for less than a second, the
GROUP LED lights up in sequence, indicating which group is selected. The PoE
POWER STATUS for that group of segments is then indicated by the RX and TX LEDs
for each segment. If there is power at the port, the RX LED is green and the TX LED is
off. Otherwise, refer to Chapter
À
TX1+ 1
RX1-
2
TX2+ 3
TX3+
4
RX3-
5
RX2-
6
TX4+
7
RX4-
8
4 for troubleshooting information.
Á
1
2
3
4
5
6
7
8
Â
3 RJ45-to-RJ45 straight-through cable
DFE-Platinum Series Hardware Installation Guide 3-19
Connecting to the Network
TX2+
RX2-
TX1+
TX4+
RX4-
RX1-
TX3+
RX3-