SRP IOA

The SRP IOA module provides three management ports (console, auxiliary, 10/100Base-T Ethernet). You can connect a console directly to the RS-232 serial console port or debug auxiliary port using a shielded straight-through cable with a female DB-9 connector on one end and a male DB-25 with a crossover adapter on the DB-25 end. These ports are called serial ports, RS-232 ports, or console ports. These ports are considered a data terminal equipment interface (DTE). Direct connection to a terminal or PC (which also have DTE interfaces) requires a crossover cable.

• See Figure 35 and Table 16 for the pinout of the console port.
• See Figure 35 and Table 17 for the pinout of the auxiliary port.
• See Table 18 for the pinout of the Ethernet port.

Figure 35: SRP IOA Console Port and Auxiliary Port Pinout

Table 16: SRP IOA – RS-232 Console Connector Pinout

Table 17: SRP IOA – RS-232 Auxiliary Connector Pinout

After you have configured an IP address on the system, you can connect using a host running Telnet over the 10/100Base-T Ethernet port on the SRP IOA. The router is shipped with a straight-through cable having a male RJ-45 Ethernet connector on each end.

See Table 18 for the pinouts of the Ethernet cable's RJ-45 connector.

Table 18: SRP IOA – RJ-45 Connector Pinout

To facilitate connecting the system to a terminal, the system is shipped with one of each of the following cable adapters:

• DB-9 female to RJ-45 female crossover null modem adapter
• DB-9 female to RJ-45 female straight-through adapter

Table 19 lists the pinouts for the crossover adapter.

Table 19: DB-9 – RJ-45 Crossover Adapter Pinout

Table 20 lists the pinout for the straight-through adapter.

Table 20: DB-9 – RJ-45 Straight-Through Adapter Pinout

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