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Capacity:  5 modules.  
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Memory:  85 selectable groups; each group has storage for 5 module set-ups. Memory is non-volatile battery-backed CMOS.  
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Overload Modes:  Three selectable modes; non-latching, that monitors all channels and displays first channel to overload; latching that maintains overload display until cleared and no indication (used with some models).  
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Overload Indicators:  LED’s for input and output. Gain display flashes when overload occurs on displayed channel (used with some models).  
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Self-test Diagnostics:  MPU checks unit upon power-up. Display indicates failure modes.  
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Displays:  7 segment green LED; 0.5” high.  
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Remote Programming:  IEEE-488/1978 GPIB interface. Subset: SH1, AH1, T6, L4, SR1, RL1,PP1, DC1, DT0, C0, E1.  
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Operating Temperature:  0° to 40°C (Specifications apply at 23°C ±5°C).  
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Storage Temperature:  -20° to +70°C.  
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Power Requirements:  90-132/180-264 volts ac, 50-60Hz, 20 watts.  
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Dimensions:  3 ½” (9cm) high, 17 ¼” (43.8cm) wide, 18 3/8” (50.2cm) deep.  
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Weights:  10 lbs. (4.6 kg) plus 1.75 lbs. (0.8 kg)/channel.  
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Accessories:  Operating and Maintenance manual; 6 foot, 3 terminal line cord.  
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Options:  Rack Mount Kit; RK-317; Module Extender; 39AME.  
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Connectors:  Input/Output BNC on front and rear panels.