Enterasys Networks Enterasys Gold Distributed Forwarding Engine 4G4285-49 - Manual (Page 53)

Connecting to the Network
Enterasys Matrix DFE-Gold Series PoE Module Hardware Installation Guide 3-19
Figure 3-8 Eight-Wire Straight-Through Cable RJ45 Pinouts, Connections
Between Switches and End User Devices
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 4G4285‐49 or 4G4205‐72 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 4G4285‐49 or 4G4205‐72 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 4G4285‐49/
4G4205‐72 will enter the PoE status mode, which will indicate a set of power status
conditions relating to the PoE Port Status.
1 RJ45 device port 3 RJ45-to-RJ45 straight-through cable
2 Other device port
TX1+
TX2+
RX4-
RX1-
TX4+
RX3-
TX3+
RX2-
2
1
3
6
4
5
7
8
TX2+
TX1+
RX3-
RX2-
TX3+
RX4-
TX4+
RX1-
2
1
3
6
4
5
7
8
В
А Б