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SmartSet Technical Reference Manual—Addendum for the E281-2310 Controller
E281-2310 SPECIFICATIONS
Electrical
Supply Voltage and Current
+5 Vdc, nominal (+4.75 to +5.25 Vdc).
140 mA, typical at +5 Vdc. Average power dissipation is 0.7 W, typical.
Supply must be capable of sourcing 200 mA, minimum, and have a rise time of less
than 100 ms. Conformance to this specification is yet to be determined.
Total noise and ripple requirement must be less than 100 mV (p-p) for frequencies
below 1 MHz, and less than 5 mV (p-p) for frequencies above 1 MHz.
Interface
EIA 232D (Serial RS-232), DCE configuration. 8 Data Bits, 1 Stop Bit, No Parity,
Half Duplex. Hardware handshaking: DTR/DSR, RTS/CTS.
Acknowledgments for command set and query.
Baud Rate
9600 only.
Operating Modes
Binary in SmartSet or E281A-4002 protocols, jumper selectable.
Initial/Stream/Untouch/Z-axis Enable Modes.
Touch Resolution
Approximately 4095x4095, size independent, 255 levels of Z (pressure).
Conversion Time
Approximately 10.4 ms per coordinate report.
Reliability
MTBF greater than 60,000 hours per MIL-HDBK-217E Notice 1 update part
count calculation. Conformance to this specification is yet to be determined.
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