Model LRA2900A RAS Getting Started Guide | 2 • Hardware installation |
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Connecting the 10/100Base-T Ethernet port to an Ethernet switch or hub
The 10/100Base-T Ethernet port (see figure 7 on page 25) is designed to connect to an Ethernet switch or hub. Connect a straight-through CAT-5 cable (one wired as shown in figure 8) between the RAS and the hub/ switch.
RJ-45 Jack | | Signal Name | Direction |
| | 1 | 1 | (TX+) Transmit Data + | Output |
| | 2 | (TX-) Transmit Data - | Output |
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| | 2 | 3 | (RX+) Receive Data + | Input |
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| | 3 | 4 | | |
| | |
| | 4 | | |
| | 5 | | |
| | 5 | (RX-) Receive Data - | Input |
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| | 6 | 6 |
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Figure 8. 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 9 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.
10Base-T Workstation | | | RAS 10/100Base-T Port |
RJ-45 Pin No. | | | RJ-45 Pin No. |
1 | (TX+) | | | 3 | (RX+) |
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2 | (TX-) | | | 6 | (RX-) |
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3 | (RX+) | | | 1 | (RX+) |
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6 | (RX-) | | | 2 | (TX-) |
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Figure 9. 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 7 on page 25) and an open serial port on your computer. If you need to assemble your own cable, refer to the pinout diagram in figure 10.
RJ-45 Jack | DB-9 | Signal Name | |
| | | 6 | DSR | Wired together |
| | 1 | 1 | CD |
| | (No other electrical |
| | 2 | 4 | DTR |
| | connection) |
| | 3 | 5 | SG |
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| | 4 | | |
| | 2 | RD (driven by access server) |
| | 5 |
| | 3 | TD (received by access server) |
| | 6 |
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| | 7 | 8 | CTS (driven by access server) |
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| | 8 | 7 | RTS (received by access server) |
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Figure 10. DB-9-to-RJ-45 cable diagram
