AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual page 178

Applications
Feature Interactions
Account Code Entry
CAS uses the account codes entered by users before or during calls to
provide reports by account code.
SMDR
CAS collects call information from the SMDR output of the system
Platform Requirements
The following equipment is required to connect Standalone CAS software (CAS
Plus V3 or CAS/H) to the system:
An AT&T 286/386 PC, configured as follows:
— MS-DOS 3.1 or higher
— 64K RAM
— 20 MB hard disk
— 1 parallel port
— 2 serial ports
— CGA/VGA/EGA, Super VGA, or Hercules monochrome monitor
— Real-time clock card
— 3.5-or 5.25-inch floppy disk drive
132-or 80-column lBM-compatible graphics parallel printer
D8W modular cord and 355AF adapter connecting the SMDR port on the
system to the COM1 serial port on the PC (CAS Plus V3 only; CAS-IS Ill
connects to the COM2 port).
4-22 Call Accounting System (CAS)