Channel Vision Power Supply W 4000 User Manual

CHANNEL VISIONTM  
White Paper  
W-4000 Power Supply  
The original version of the W-4000 was shipped with a 9VAC power supply. It was capable of using either a  
9VAC or 12VDC power supply. Beginning in July of 2005, the circuit was changed so that it could only  
accept a 12VDC power supply. There were some of these new circuit boards assembled into the old metal  
chassis which contained a silkscreen showing “9VAC” near the power input connection. Using a 9VAC  
power supply on these units will cause damage to the circuit. If a customer needs to replace the W-4000 power  
supply and is not certain which power supply to choose, ALWAYS USE A 12VDC POWER SUPPLY. The  
12VDC power supply will work on any W-4000.  
It is possible to determine which circuit is inside any by looking at the MAC address of the unit. The  
following MAC address marks the first unit containing the DC only circuit:  
MAC 0004290FF840  
Understanding the MAC address:  
The first six digits denote the manufacturer fo the Ethernet device (these can be ignored).  
The last six digits form a unique sequential number written in Hexadecimal format.  
To see if your MAC address is smaller or larger than this one (0FF840), use a scientific calculator to  
convert it into a decimal number. (There is scientific calculator available in the accessories section  
of most Windows operating systems).  
The Hexadecimal number: 0FF840 converts to: 1046592  
So, if your number is larger than 1046592, then you have a DC Only circuit.  
Or, if your number is smaller than 1046592, then you have a AC or DC circuit.  
CHANNEL VISION  
Costa Mesa CA 92626  
1-800-840-0288  
Title  
W-4000 Power Supply  
Size  
File Name  
W-4000_PowerSupply  
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Scale  
Sheet  
Date  
08/08/06  
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