Features: • Dual Battery Operation• Single Additional +5V Supply• Low Standby Power Consumption (48V, 35mW)• On Hook Transmission• Tip and Ring Disconnect• Soft or Hard Polarity Reversal• Supports 12 kHz or 16 kHz Pulse Metering• Ring Relay Driver...
HC5549: Features: • Dual Battery Operation• Single Additional +5V Supply• Low Standby Power Consumption (48V, 35mW)• On Hook Transmission• Tip and Ring Disconnect• Soft o...
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