Channel Vision W-4000 White Paper

White Paper
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,
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.
W-4000 Power Supply
C
H A N N E L
ALWAYS USE A 12VDC POWER SUPPLY
V
I S I O N
. The
CHANNEL VISION
Costa Mesa CA 92626 Costa Mesa CA 92626
1-800-840-0288
www.channelvision.com
Title
W-4000 Power Supply
Size File Name File Name
A W-4000_PowerSupply
Scale Sheet
na of
1 2
TM
Date
08/08/06