Environmental Specifications

Footnotes and Environmental Specifications Notes: 1. Based upon 0 outputs per VM module. Add 50 mA to the +24 V supply line for each positive D/A voltage sinking 50 mA, and 50 mA to the -24 V supply line for each negative D/A voltage sinking 50 mA 2. Based upon 0 outputs per VM module. Add 50 mA to the +24 V supply line for each D/A voltage sinking 50 mA positive or negative 3. Based upon all relays in the opn position. Add 30 mA to the +5 V line per closed relay 4. Add 0.04 A to the +5 V line per close relay 5. Add 0.03 A to the +5 V line per closed relay 6. Add 0.08 A to the +12 V line per closed relay 7. Add 0.05 A to the +5 V line per closed relay 8. Add 0.16 A per relay closure 9. Current drawn when changing channels 10. Add 0.1 lb per relay 11. Add 0.3 lb per relay 12. Add 0.07 A per relay closure

Electro-mechanical relays are the determining component for the MTBF of switch modules. Therefore, MTBFs are specified in terms of relay life expectancy. Worst case cooling requirement for SMIPII™is 3.0 l/s 0.7 mm H20 Worst case cooling requirement for VMIP is 3.8 l/s 0.5 mm H20