Measurement Computing SWITCH - Manual (Page 32)

Switch & Sense 8 User's Guide Template Specifications
32
USB connection
Captive pigtail cable USB Type A connector
Length 2 meters
Read/write benchmark timing
The following benchmarks are provided for reference only and were obtained with a single Switch & Sense 8
on a 500 MHz Pentium III running Windows 98 Second Edition. Performance figures can vary based on system
configuration.
Read timing reflects the total time to execute one read operation using the input functions provided in the
interface DLL. Write timing reflects the total time to execute one write operation using the output functions
provided in the interface DLL. The "write time" specified in the table below is the time to assert the relay
control line from the software interface.
Write timing Throughput 20 mS typical
Relay set 10 mS (write time) + 10 mS (operate time) = 20 mS
Relay clear 10 mS (write time) + 5 mS (release time) = 15 mS
Read timing Throughput 20 mS typical
Environmental
Operating temperature range 0 to 70 °C
Storage temperature range -40 to 100 °C
Humidity 0 to 95% non-condensing
Mechanical
Card dimensions 165 mm long x 150 mm wide x 20 mm high, 6.5 in. long x 5.9 in. wide x 0.8 in. high
Case dimensions 185 mm long x 160 mm wide x 46 mm high, 7.3 in. long x 6.3 in. wide x 1.8 in. high
Case material 20 gage steel
Weight of complete unit 2.1 lbs.
Weight of card alone 0.6 lbs.
Screw terminal
Wire sizes 12-20 AWG
Miscellaneous
Case strain relief rating 20 lbs.
Screw terminal pinouts
Pin Signal Name Pin Signal name
IP0A Input 0 terminal A IP4A Input 4 terminal A
IP0B Input 0 terminal B IP4B Input 4 terminal B
IP1A Input 1 terminal A IP5A Input 5 terminal A
IP1B Input 1 terminal B IP5B Input 5 terminal B
IP2A Input 2 terminal A IP6A Input 6 terminal A
IP2B Input 2 terminal B IP6B Input 6 terminal B
IP3A Input 3 terminal A IP7A Input 7 terminal A
IP3B Input 3 terminal B IP7B Input 7 terminal B
0-NO Relay 0 Normally Open contact 4-NO Relay 4 Normally Open contact
0-C Relay 0 Common contact 4-C Relay 4 Common contact
0-NC Relay 0 Normally Closed contact 4-NC Relay 4 Normally Closed contact