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USER MANUAL MODEL 500, 501 & 502 RS-232 Surge Protectors Part# 07M500/1/2-C SALES OFFICE Doc# 074230UC (301) 975-1000 Revised 2/22/96 TECHNICAL SUPPORT (301) 975-1007...
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Connectors: DB-25, one male, one female Model 500/501/502. Technical Service hours: 8AM to 5PM EST, Monday through Friday. Pins Wired/Protected: 2, 3, 4, 5, 6, 7, 8, 15, 17, 20 & 24 Surge Capacity: 1.5kW for 1 mS...
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Therefore, even if the unit fails, it protects your equipment by shunting transient surges directly to ground. The Model 500 protects pins 2, 3, 7 and 20 against transient overvoltages. The Model 501 protects pins 2, 3, 4, 5, 6, 7, 8 and 20.