Specifications

SERIES 3/3A PROGRAMMING GUIDE
A - 2
Expansion
Peripherals External peripherals (such as a modems and printers) can be connected via a
fast serial interface (1.536 Mbits/sec), which accepts optional 3Link parallel
and serial interfaces. The Serial 3Link allows communication with other
computers.
PC Card adapter. SMS cables for Nokia and Orange mobile phones.
3Fax fax modem, (superseded by PC Card adapter).
Socket: 6-way two row rectangular (male, with retracting protective cover).
See the section ‘The 15-way SIBO/RS232 connector' in the 'SIBO Expansion
Ports' chapter in the
Hardware Reference
manual for pinout details.
Environment
Operating temperatures 0ºC to 50ºC.
EMC FCC Part 15 Class B; CE Mark
Psion Series 3/3s Technical Specification
These models are no longer in production.
Physical characteristics
Size 165mm x 85mm x 22mm (6.5"x 3.0"x 0.9").
Weight 265g (including batteries).
Screen 240 x 80 pixel high contrast retardation film LCD.
Size 97.3mm x 38.9mm.
Pixel pitch 0.385mm x 0.43mm
Pixel size 0.355mm x 0.4mm.
Keyboard 58 key, QWERTY layout, computer style keyboard (UK models).
8 touch sensitive icon buttons for application selection.
Sound Piezo buzzer.
Loudspeaker with DTMF dialing.
Power supply
Internal 2 x AA batteries.
Backup 3V Lithium CR1620 battery.
External A Psion Series 3 mains adaptor, (9-11V 250mA), (Note: earlier models
175mA).
Vehicle power adaptor (24v & 12v cigarette lighter sockets), from Jan/Feb
1997.
Memory
Built in Series 3 has 384KB or 512KB Masked ROM and 128KB or 256KB RAM,
Series 3s has 512KB Masked ROM and 256KB RAM.
Two SSD drives allow extra storage space on Flash/RAM SSDs, up to 8MB.
System information
Processor NEC V30H running at 3.84MHz.
Operating system EPOC.
Microsoft MS-DOS compatible Flash Filing System.