Microsoft TA61 manual Appendix, Technical data

Appendix

Technical data

Housing dimensions	Footprint:	280mm x 172mm
	Height:	49mm
Cable length	Standard:	1m
	Optional:	2m	extension cable
Power supply	5V +/- 10%, max. 220mA
Protocol	PC AT interface, bidirectional,
	seriel, synchronous
Connection	Mini-DIN connector (6-pin.)
Keyboard	Keyboard with variable
	key assigment, two-Key rollover
Microprocessor	8052 NMOS-CPU, 12MHz, 8-KByte ROM
	80C52 CMOS-CPU, 12MHz, 8-KByte ROM
Power-up reset	Yes
Self-test	Yes
Technology	NMOS, CMOS, standard TTL
Key switch	Switch positions:		5, plus insertion position
Swipecard reader	Number of magnetic heads:			2 or 3
	Magnetic card coding:			To ISO 3554
	Reading rate:			15 to 80 cm/s

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