Specifications 5
E4418B Power Meter User’s Guide 171
General Characteristics
Rear Panel Connectors
Recorder Output
Analog 0 to 1 Volt, 1 kW output impedance, BNC connector.
GPIB
Allows communication with an external GPIB controller.
RS-232/422
Allows communication with an external RS- 232 or RS422 controller. Male
Plug 9 position D- subminiature connector.
Remote Input/Output
A TTL logic level is output when the measurement exceeds a predetermined
limit. TTL inputs are provided to initiate zero and calibration cycles. RJ- 45
series shielded modular jack assembly.
TTL output: high = 4.8 V max; low = 0.2 V max
TTL input: high = 3.5 V min, 5 V max; low = 1 V max, –0.3 V min
Ground
Binding post, accepts 4 mm plug or bare wire connection.
Line Power
• Input Voltage Range: 85 to 264 Vac, automatic selection
• Input Frequency Range: 50 to 440 Hz
• Power Requirement: approximately 50 VA (14 Watts)