Cabletron Systems ELH100 User Manual
24 Installation
ELH100-12/24TX
10Base-T/100Base-TX Ports
The 10Base-T/100Base-TX ports use RJ-45 connectors. Figure 2-6
shows an RJ-45 connector being inserted into a port.
shows an RJ-45 connector being inserted into a port.
Figure 2-6. Inserting an RJ-45 Connector into a Port
The ports on the base unit are wired with the MDI-X function
implemented. These ports interface to UTP cabling for connection to
10Base-T or 100Base-TX network segments or end-stations. These UTP
connections meet the requirements of ISO 8877, specified by 10Base-T,
Section 14 of the IEEE 802.3 specification. Workstations or servers can
be connected to these ports using standard straight-through wired cables.
implemented. These ports interface to UTP cabling for connection to
10Base-T or 100Base-TX network segments or end-stations. These UTP
connections meet the requirements of ISO 8877, specified by 10Base-T,
Section 14 of the IEEE 802.3 specification. Workstations or servers can
be connected to these ports using standard straight-through wired cables.
For connections to other hubs or switches, Port 12 (24) on the ELH100-
12TX (ELH100-24TX) hub includes a switch for MDI or MDI-X selection.
If an MDI port is not available on the hub, a crossover cable may be
necessary (refer to MDI/MDI-X Crossover Cable Wiring on page 94). See
Table A-2, “10Base-T/100Base-TX Pinouts,” on page 93 for 10Base-T/
100Base-TX connector pin assignments.
12TX (ELH100-24TX) hub includes a switch for MDI or MDI-X selection.
If an MDI port is not available on the hub, a crossover cable may be
necessary (refer to MDI/MDI-X Crossover Cable Wiring on page 94). See
Table A-2, “10Base-T/100Base-TX Pinouts,” on page 93 for 10Base-T/
100Base-TX connector pin assignments.
The 10Base-T/100Base-TX switch/media module includes one port wired
for MDI-X and one port wired for MDI. You can not use both ports on the
module at the same time.
for MDI-X and one port wired for MDI. You can not use both ports on the
module at the same time.
Table 2-5 provides information for the single port 10Base-T/100Base-TX
uplink module available for the ELH100-12/24TX.
uplink module available for the ELH100-12/24TX.
Table 2-5. 10Base-T/100Base-TX Uplink Module
Part Number
Functions
Description
ELH-ULSW-TX
10Base-T/
100Base-TX
100Base-TX
Single port RJ-45 uplink module using MDI-X
and MDI connectors, with internal switching
between the 10 and 100 Mbps repeater buses.
and MDI connectors, with internal switching
between the 10 and 100 Mbps repeater buses.