Tektronix 222 Operator's Manual page 124

Performance Specifications-222 DSO Operators
8.3.4 X-Y Operation
Accuracy
Same as the Vertical system.1
Useful Bandwidth
Skew Between CH 1 and CH 2
5
ns.l
8.3.5 RS-232 Interface
Maximum Applied Voltage (any pin)
25
V (dc
+
peak ac).l
Baud Rates
300, 1200, 2400, 9600; 0.1 % accuracy based on the micro-
processor clock.1
Signals
RD, TD, and SGND. SGND is connected internally to EXTERNAL
TRIG COM. DSR and CTS are always high, and DTR and RTS are
ignored.1
Levels
Compatible with RS-232C.
8.3.6 External Power Requirements
Voltage Range
16
to 20 Vac at
47
to
400
Hz.1
Performance Requirement not checked in manual.
REV JUN 1989