Telenetics MIU Dial or Leased Line modem with RS-485 - Manual (Page 6)

Install Op and Diags for MIU Modems and RS485 (0049-0002-010A) Page 4 of 16
4. POWER SUPPLY SPECIFICATIONS
The MIUXXX/485 contains a low quiescent power regulator. TheMIUXXX/485 also has
a "low power" standby mode which minimizes overall power requirements when the
MIUXXX/485 is used intermittently.
4.1 Power Supply Selection (MIU) The power supply is selected through the use of
a 3-pin screw - type terminal connector.
Power Connector P3 (MIU)
Connector Type: 3 Pin screw- type terminal
Regulated Powe r Supply Range: 48.0 to 220 Volts AC/DC.
Standby Supply Currents: 200uA
Active Supply Currents: 8mA to 40mA plus modem current
In-Rush Current: < 250mA
Reverse Protection Method: Full wave Bridge Rectifier
Over-Voltage Clamp limits: Zener diode
Regulated Power Supply Range: (12 - 24VDC) is available as an option
Standby Supply Currents: 200uA
Active Supply Currents: 35mA to 295mA plus modem current
In-Rush Current: < 350mA
Reverse Protection Method: Full Wave Bridge Rectifier
Over- Voltage Clamp limits: Zener diode and TransZorb TVS