Back Panel

1-7

Reset Switch The reset switch is located at the lower left corner of the front panel (see Figure 1-3 and Figure 1-4). It is recessed to protect it from being pressed unintentionally. Pressing the reset switch interrupts normal operation, reinitializes the server, begins the startup sequence, and purges server RAM in the same way as toggling the power switch. The Self Test LED lights as the server executes self-test diagnostics. The Boot State LED lights as the server boots from its software diskette or the network.

CS/2600 Internal Model CS/2600 includes a 3.5-inch, 135-tpi diskette drive located on the Diskette Drive right side of the front panel (see Figure 1-4). The drive can

accommodate 1 MB or 2 MB unformatted capacity (720 KB or 1.44 MB formatted) diskettes. This drive is used for booting system software and for performing memory dumps following a server failure. The diskette is also used during operation to maintain software configuration information.

Back Panel

The CS/2500 and CS/2600 back panel, shown in Figure 1-5, contains the

 

power supply module and three types of connectors:

Serial port connectors to connect host, terminal, or modem devices

A transceiver connector to connect to local area networks

A printer port connector to connect the server to parallel printers with Centronics interfaces

Fuse

Printer port

 

 

Transceiver connector

J1

J3

J5

J7

J9

 

J2

J4

J6

J8

Port J0

AC power Power switch connector

Serial I/O connectors

Figure 1-5 CS/2500 and CS/2600 Back Panel

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3Com manual Back Panel, CS/2500 and CS/2600 back panel, shown in -5, contains