Enterasys a2h123-24 User Manual
100BASE-TX Network
2-2
Network Requirements
100BASE-TX Network
When connecting a 100BASE‐TX segment to one of the fixed ports (1 through 24 on the
A2H123‐24) use Category 5 UTP cabling. The device at the other end of the twisted pair
segment must meet IEEE 802.3‐2005 100BASE‐TX Fast Ethernet network requirements for
the SecureStack A2 to operate at 100 Mbps.
A2H123‐24) use Category 5 UTP cabling. The device at the other end of the twisted pair
segment must meet IEEE 802.3‐2005 100BASE‐TX Fast Ethernet network requirements for
the SecureStack A2 to operate at 100 Mbps.
100BASE-FX Network
The fixed LC connector ports provide fiber‐optic connections operating at 100 Mbps. The
device at the other end of the fiber‐optic connection must meet IEEE 802.3‐2005 Fast
Ethernet requirements for the devices to operate at Fast Ethernet speed.
device at the other end of the fiber‐optic connection must meet IEEE 802.3‐2005 Fast
Ethernet requirements for the devices to operate at Fast Ethernet speed.
1000BASE-T Network
The RJ45 fixed front panel stacking port 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. In standalone mode, the stack ports may be user
configured to serve as a standard switch port allowing Gigabit uplink to the network. The
device at the other end of the twisted pair segment must meet IEEE 802.3‐2005
1000BASE‐T Gigabit Ethernet network requirements for the devices to operate at
1000 Mbps.
compliant connections. When connecting a 1000BASE‐T segment to one of the RJ45 fixed
ports use Category 5 UTP cabling. In standalone mode, the stack ports may be user
configured to serve as a standard switch port allowing Gigabit uplink to the network. The
device at the other end of the twisted pair segment must meet IEEE 802.3‐2005
1000BASE‐T Gigabit Ethernet network requirements for the devices to operate at
1000 Mbps.
Note: When using the RJ45 ports on the SecureStack A2 for 100 Mbps operation use
Category 5 UTP cabling with an impedance between 85 and 111 ohms.
Category 5 UTP cabling with an impedance between 85 and 111 ohms.
The fixed SecureStack A2 ports are capable of operating at 10 and 100 Mbps. This is
accomplished by the SecureStack A2 when Auto-Negotiation is enabled. This enables the
SecureStack A2 to automatically sense the transmission speed of the other device and
adjust for the speed accordingly.
accomplished by the SecureStack A2 when Auto-Negotiation is enabled. This enables the
SecureStack A2 to automatically sense the transmission speed of the other device and
adjust for the speed accordingly.