Specifications
Quick Start Guide  Installation and Operation Manual 
2  Connecting the Power  Optimux-108 Ver. 6.1 
2.  Connecting the Power 
Before powering this unit and before connecting or disconnecting any other 
cable, the protective earth terminals of this instrument must be connected to the 
protective ground conductor of the mains (AC or DC) power cord. If you are using 
an extension cord (power cable) make sure it is grounded as well. 
Any interruption of the protective grounding conductor (inside or outside the 
instrument) or disconnecting the protective earth terminal can make this unit 
dangerous. Intentional interruption is prohibited. 
Connecting the AC/DC Power 
The Optimux-108 is supplied with a Wide Range AC/DC power supply. The wide-
range AC/DC power supply accepts current from both AC and DC sources. From an 
AC source, the power supply can receive any voltage in the range of 100 VAC to 
240 VAC. From a DC source, the -48 VDC power supply can receive any voltage in 
the range of -40 to -72 VDC. 
This unit is equipped with a standard AC-type 3-prong power input connector 
located on the unit rear panel. This power input connector can be used for both 
AC and DC voltage inputs. AC or DC power should be supplied to Optimux-108 
through the 5-feet (1.5m) standard power cable terminated by a standard 3-
prong plug. 
³  To connect Optimux-108 to AC power: 
1.  Connect the power cable to the connector on the Optimux-108 rear panel. 
2.  Connect the power cable to the electricity outlet. 
³  To connect Optimux-108 to -48 VDC power: 
•  Refer to the DC power supply connection supplement, located on the 
Technical Documentation CD or at the back of the official printed version of 
this manual. Also, refer to the safety instructions at the beginning of this 
document. 
Connecting the DC Power 
When connecting the DC power, the PWR pin must be connected to the 
ungrounded line of the central battery (either − or +). The RTN pin must be 
connected to the grounded line of the central battery. The GND pin must be 
connected to the protected earth of the building installation. 
The DC installation procedure must be performed by a qualified technician. 
Warning 
Caution 










