HP Portable PLUS - Page 13

1-4 General Information
Portable PLUS Computer
Table 1-2. Portable PLUS Specifications (Continued)
Memory
• ROM: 192K bytes.
• RAM: 512K bytes (versions E and F).
256K bytes (versions C and D).
128K bytes (versions A
and B).
• Display RAM: 16K bytes.
• Configuration EPROM: 8K bytes, expandable to 16K.
HP-IL Interface
• Default status: controller.
• Cables: refer to section 1.4.
• Uses: disc drive, printer, plotter, modem, etc.
Serial Interface
• Compatability: RS-232-CjCCITI Y.24, V.28 standards.
• Selections: baud, parity, word length, handshake, and stop bits.
• Baud rates: 110, 135, 150, 300, 600, 1200, 1800, 2400, 3600, 4800, 7200, 9600, and 19200.
•
Connector: Female 9-pin D-subminiature.
• Cables: refer to section 1.5.
• Uses: printer, modem, etc.
Optional Modem (HP 82983A)
• Compatability: Bell 212A protocol.
• Operation: full-duplex and asynchronous.
• Baud rates: 110, 150, 300, and 1200 bps
• Modes: Originate and Answer.
• Dialing: pulse and tone.
• Answering: automatic and manual.