10Base-Tx Network; 1000Base-Fx Network; 1000Base-T Network - Enterasys SecureStack C3G124-24P Installation Manual

10BASE-TX Network

10BASE-TX Network
When connecting a 10BASE‐TX segment to one of the RJ45 fixed ports on both the
C3G124‐24P and the C3G124‐48P, ensure that the network meets the Ethernet network
requirements of the IEEE 802.3‐2002 standard for 10BASE‐TX. Refer to the Cabling Guide
for details.
100BASE-TX Network
When connecting a 100BASE‐TX segment to one of the RJ45 fixed ports on both the
C3G124‐24P and the C3G124‐48P, use Category 5 UTP cabling. The switch at the other end
of the twisted pair segment must meet IEEE 802.3‐2002 100BASE‐TX Fast Ethernet
network requirements for the switches to operate at 100 Mbps.

1000BASE-FX Network

The Mini‐GBIC port sockets on the C3G124‐24P and C3G124‐48P enable you to vary the
type of 1‐Gbps port connection. The device at the other end of the segment must meet the
same Gigabit Ethernet requirements for the connected devices to operate at 1‐Gigabit
speed. Refer to Table
Enterasys Networks.

1000BASE-T Network

The RJ45 fixed front panel connectors support RJ45 copper 1000BASE‐T compliant
connections. When connecting a 1000BASE‐T segment to one of the RJ45 fixed ports, use
Category 5 UTP cabling or better. The device at the other end of the twisted pair segment
must meet IEEE 802.3‐2002 1000BASE‐T Gigabit Ethernet network requirements for the
devices to operate at 1000 Mbps.
The C3G124‐24P and C3G124‐48P can support 1000BASE‐T copper connections through
MGBIC‐02s installed in the MGBIC port slots.
2-2 Network Requirements
Note: If a port is to operate at 100 or 1000 Mbps, Category 5 cabling must be used.
Category 3 cabling does not meet the 100 or 1000 Mbps specifications. For 10 Mbps
operation only, Category 3, Category 4, or Category 5 cabling can be used. Refer to
100BASE-TX Network (page 2-2) and
about 100BASE-TX and 1000BASE-T networks and cabling.
Note: When using the fixed ports on the switch for 100 Mbps operation use Category 5
UTP cabling with an impedance between 85 and 111 ohms for 100 Mbps operation.
Depending on the switch used, the fixed switch ports are capable of operating at 10 or
100 Mbps or at 10, 100, or 1000 Mbps. This is accomplished when Auto-Negotiation is
,
enabled, allowing the switch to automatically sense the transmission speed of the other
device and adjust for the speed accordingly.
1‐2 on page 1‐6 for a list of Mini‐GBICs currently available from
1000BASE-T Network (page 2-2) for information