M2488 PRODUCT GUIDE MAINTENA NCE AND SER VICING
April 1997 CG00000-011503 REV. A 8-33
8-7 MAINTENANCE TERMINAL
The maintenance terminal is attached to the rear of the M2488 via the 9-pin DIN connector. It has two
functions, use as a terminal to run diagnostics using keyboard input and as a debug port for use with
special tools that can be accessed by remote attach with a modem.
8-7.1 Maintenance Interface
A 9-pin (DB-9) maintenance interface (DTE device) is provided on the rear panel of the tape drive
which is used for maintenance and diagnostic operation. Nearly all maintenance and all diagnostic
capabilities are accessible through this interface. The maintenance interface connector is shown in
Figure 8-3 and the pin assignments are indicated in Table 8-24.
Figure 8-3. Maintenance Connector (M2488)
Table 8-24. Maintenance Interface Connector Pin Assignments
M2488 PC
CONNECTOR
CONTACT
NUMBER SIGNAL NAME ABBREVIATION DIRECTION 25-PIN SIGNAL
1 DATA CARRIER DETECT DCD IN 2 TX
2RECEIVE DATA RX IN 3 RX
3 TRANSMIT DATA TX OUT 6 DSR
4 DATA TERMINAL READY DTR OUT 7 GND
5SIGNAL GROUND GND 20 DTR
6 DATA SET READY DSR IN 5 CTS
7REQUEST TO SEND RTS OUT 4 RTS
8CLEAR TO SEND CTS IN
9 RING INDICATOR RI IN
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