
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.
4.1Power Supply Selection (MIU) The power supply is selected through the use of a 
| 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 | 
| < 250mA | |
| Reverse Protection Method: | Full wave Bridge Rectifier | 
| 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 | 
| < 350mA | |
| Reverse Protection Method: | Full Wave Bridge Rectifier | 
| Over- Voltage Clamp limits: | Zener diode and TransZorb TVS | 
| Install Op and Diags for MIU Modems and RS485  | Page 4 of 16 | 
