Installation guide

Connecting to the Network
3-6 Installation
Figure 3-2 Installing Module into N3, N1, or N5 Chassis (N3 shown)
Connecting to the Network
Thissectionprovidestheproceduresforconnectingunshieldedtwistedpair(UTP)segmentsfrom
thenetworkorotherdevicestothe2G4082‐25(“ConnectingUTPCables”onpage 3‐6).
Connecting UTP Cables
ThefixedRJ45frontpanelconnectionsofthe2G4082‐25are10/100/1000 Mbpsports.Theseports
haveinternalcrossovers,andalsosupportautomatic‐polaritysensingwhenconfiguredfor
automatic‐negotiation.
Ifautomatic‐negotiationisnotactivatedonaport,useastraight‐throughcablewhenconnectinga
workstationtotheport.When
connectinganetworkingdevicetotheport,suchasabridge,
repeater,orrouter,useacrossovercable.
Ifaportissetforauto‐negotiation,automatic‐polaritysensingisalsoactivated.Automatic‐
polaritysensingeliminatestheneedforacrossovercable,regardlessiftheconnectionistoanother
networkdevice
oraworkstation.
1 Card guides 5 Upper locking tab (shown in closed position)
2 Slot 1 (Top slot is slot 3.) 6 Lower locking tab (shown in closed position)
3 Module card 7 Backplane connectors
4 Metal back panel
FAN
STATUS
7C203-1
REDUNDANCY
PWR
100-125V~12.0A
200-240V~6.0A
50/60 Hz
0
7C203-1
REDUNDANCY
PWR
100-125V~12.0A
200-240V~6.0A
50/60 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
DFE
2G4082-25
Gb ENET
Á
Æ
Ä
Â
ÀÃ
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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 2G4082-25support Category 5 Unshielded Twisted Pair
(UTP) cabling with an impedance between 85 and 111 ohms. Category 3 cable may be used if the
connection is going to be used only for 10 Mbps.