Connecting to the Network3-6 Installation
Figure 3-2 Installing Module into N3, N1, or N5 Chassis (N3 shown)
Connecting to the Network
Thissectionprovidestheproceduresforconnectingunshieldedtwistedpair(UTP)segmentsfrom
thenetworkorotherdevicestothe2G408225(“ConnectingUTPCablesonpage 36).

Connecting UTP Cables

ThefixedRJ45frontpanelconnectionsofthe2G408225are10/100/1000Mbpsports.Theseports
haveinternalcrossovers,andalsosupportautomaticpolaritysensingwhenconfiguredfor
automaticnegotiation.
Ifautomaticnegotiationisnotactivatedonaport,useastraightthroughcablewhenconnectinga
workstationtotheport.Whenconnectinganetworkingdevicetotheport,suchasabridge,
repeater,orrouter,useacrossovercable.
Ifaportissetforautonegotiation,automaticpolaritysensingisalsoactivated.Automatic
polaritysensingeliminatestheneedforacrossovercable,regardlessiftheconnectionistoanother
networkdeviceoraworkstation.
1Card guides 5Upper locking tab (shown in closed position)
2Slot 1 (Top slot is slot 3.) 6Lower locking tab (shown in closed position)
3Module card 7Backplane connectors
4Metal back panel
FANSTATUS7C203-1REDUNDANCYPWR100-125V~12.0A200-240V~6.0A50/60 Hz
0
7C203-1REDUNDANCYPWR100-125V~12.0A200-240V~6.0A50/60 Hz
0
COM
OFFLINE/
RESET
MGMT CPU
1
2
GROUP
SELECT
1X
11X
13X
12X
14X
23X
G
R
O
U
P
1
24X
G
R
O
U
P
2
GROUP
1
2
3
4
5
6
7
8
9
10
11
12
DFE2G4082-25Gb ENET
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Æ
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Note: If the DFE-Platinum module is being installed in a network using Link Aggregation, there are
rules concerning network cables and port configurations that must be followed for Link Aggregation
to operate properly. Before connecting the cables, refer to the Enterasys Matrix DFE-Diamond/
Platinum Series Configuration Guide for the configuration information. For details on how to obtain
manuals, refer to the Related Documents” on page xii.
Note: All RJ45 front panel ports on the 2G4082-25support Category 5 Unshielded Twisted Pair
(UTP) cabling with an impedance between 85 and 111 ohms. Category3 cable may be used if the
connection is going to be used only for 10 Mbps.