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2 • Hardware installation Model 3125 RAS Getting Started Guide
32 Cable installation
Connecting the 10/100Base-T Ethernet port to an Ethernet switch or hub
The 10/100Base-T Ethernet port (see figure 12 on page 31) is designed to connect to an Ethernet switch or
hub. Connect a straight-through CAT-5 cable (one wired as shown in figure 13) between the RAS and the
hub/switch.
Figure 13. Straight-through RJ-45-to-RJ-45 Ethernet cable diagram
Connecting the 10/100Base-T Ethernet port to an Ethernet-capable workstation
The 10/100Base-T Ethernet port can connect to a single Ethernet-capable workstation by means of a cross-
over cable. Refer to figure 14 to assemble a cross-connect cable that will connect between the NIC Ethernet
port in the workstation and the RAS 10/100Base-T Ethernet port.
Figure 14. Cross-over RJ-45-to-RJ-45 Ethernet cable diagram
Connecting the EIA-561 RS-232 configuration port
Install the supplied DB-9-to-RJ-45 cable between the RAS RS-232 port (see figure 12 on page 31) and an
open serial port on your computer. If you need to assemble your own cable, refer to the pinout diagram in
figure 15.
Figure 15. DB-9-to-RJ-45 cable diagram