ISP-80 Disk Controller

Self-Test Error Codes

LED 7 lights to indicate a failed self-test

Diagnostic Engineering Monitor

The Diagnostic Engineering Monitor (DEMON) is entered when the Diag/Norm switch is in the Diag position.

Self-test output is monitored by connecting the ISP-80 controller to a terminal set to 9600 baud, 8 data bits, no parity, and 1 stop bit. The ISP-80 Controller serial port is a 25-pin, dual in-line, header-type connector.

Since Sun does not make a cable that connects the ISP-80 controller and a terminal, use an adapter cable and a null modem cable.

Adapter Cable

Examples of Sun cables that can be used as adapter cables are:

530-1178-01 (ALM-1, RS-232)

530-1179-01 (ALM-1, RS-232)

530-1312-02 (ALM-2, Printer)

530-1313-01 (MCP, RS-232)

Sun SMD data cables cannot be used as the adapter cable because they do not have Pin 2.

Null Modem Cable

The null modem cable must have Pins 2 and 3 crossed and Pin-7 straight. Laserwriter Cable 530-1172-03 is an example of this type of cable.