Enterasys Networks Enterasys SecureStack B2 B2G124-24 - Manual (Page 52)

Connecting to the Network
3-22 Hardware Installation
Figure 3-12 Connecting to a Modem
Connecting to the Network
The following procedures cover the cable connections from the network or other devices
to the switch RJ45 ports or any installed optional Mini‐GBIC.
• Connecting UTP Cables on page 3‐22
• Connecting Fiber‐Optic Cables to MT‐RJ Ports on page 3‐26
• Connecting Fiber‐Optic Cables to LC Ports on page 3‐28
Connecting UTP Cables
The fixed RJ45 front panel ports are 10/100/1000 Mbps ports and have internal crossovers.
When connecting a workstation to these ports, use a straight‐through cable. When
connecting networking devices to these ports, such as a bridge, repeater, or router, use a
crossover cable.
To connect twisted pair segments to the switch, refer to Figure 3‐13 and proceed as
follows:
1. Ensure that the device to be connected at the other end of the segment is
powered ON.
1 DB9 female cable connector 4 DB25 male connector 7 PC with VT emulation application
2 Serial interface cable 5 Local modem
3 DB9 male Console port 6 Remote modem
В Г Б А Д Е Ж
Console
CP U
UP
RP S
MGR
DO WN
Note: All fixed RJ45 front panel ports 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.