Tektronix DAS 9221 Option 04, Руководство пользователя

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Appendix A: Specifications
DAS System User Manual
A–5
Table A–4: Standard Electrical Interfaces (Cont.)
Characteristic Description
Auxiliary 38400, 19200, 9600 (default), 4800, 2400, 1200, 600, 300, 110
Ethernet LAN Interface The interface conforms to the ANSI/IEEE 802.3, 3rd Edition, 1992; also known as
ISO/IEC 8802-3, 1992 except that “Control Out” functionality is not supported. Refer to the
standard for details about this interface.
Table A–5: Discrete I/O Signals
Characteristic Description
Output Signals SO–1:8 Outputs can be momentary or level (Signal pins 2 – 9 with respective ground pins 21 – 28)
Drive (typical) Driven from standard 74ALS996 with 10 series resistors and protection diodes
Negative-going pulse width
(typical) 2 ms, or greater, under momentary operation
Recommended maximum load
(typical) 1 standard STTL load with up to 250 pF capacitance for edge integrity
Read Strobe (pin 10)
Write Strobe (pin 1) With respective ground pin 29
With respective ground pin 30
Drive (typical) Driven from standard 74F14
Negative-going pulse width
(typical) With active positive edge
Read Strobe 225 ns
Write Strobe 150 ns
Recommended maximum load
(typical) 1 standard STTL load with up to 60 pF capacitance for edge integrity
+5 V (pin 19) Fused at 0.75 A
Ground (pins 20 – 37) Fused at 1.5 A
Input Signals SI–1:8 Inputs are level only (Signal pins 11 – 18 with respective ground pins 30 – 37)
Load (typical) 1 standard FTTL load with 4.7 k pull-up resistor and approximately 60 pF capacitive load, also
includes 10 series resistors and protection diodes