AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual page 188

Applications
A UNIX* system-based version of SPM is available. See IS II and IS Ill.
SPM reports can be printed out or can be written to the PC's hard or
floppy disk drive. At the same time, the report is displayed on the screen
together with prompts for browsing.
SPM reports should not be printed while the system is handling more
than 100 calls per hour.
A printer connected to the computer running SPM can be used to print
system programming reports. Reports can also be sent to a printer
connected to the SMDR port on the control unit. However, SMDR
information may be lost while system programming reports are being
printed through the SMDR port.
Platform Requirements
Standalone SPM requires an approved AT&T DOS PC, configured as follows:
MS-DOS 3.3 or higher.
At least 128 kbytes of RAM.
A double-sided floppy diskette drive, either 5¼-inch or 3½-inch. (A hard
disk is optional, but recommended.)
A serial port assigned to COM1 or COM2. The serial port can use either
a DB-9 or DB-25 connector. If a DB-9 connector is used, a 9-pin to
25-pin adapter is also required. The 9-pin side must be female.
A monochrome or color monitor.
A D8W modular cord and a 355AF modular adapter if the PC is less than
50 feet (15 meters) from the control unit. Distances of greater than 50
feet (15 meters) require back-to-back ADUs.
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System Programming and Maintenance (SPM)