UG:402
Page 5
VIA™ to Adapter Bridge Board
The Typical Application diagram in Figure 1 shows the connections required to establish PMBus
™
communication between PMBus-enabled VIA modules and a host PC. The setup for this configuration
includes directly connecting the VIA Signal Connector cable to the PMBus signal port on the VIA.
The Adapter Bridge Board, as shown in Figure 2 and Figure 3, provides the necessary connections
between the VIA Signal Connector Cable and the PMBus to USB Adapter. On Adapter Bridge Board
USB-ADAPTER-1V-B00, the VIA PMBus address is programmed to 51h by a pre-installed resistor R02.
On the Adapter Bridge Board USB-ADAPTER-4V-A00, the four VIA PMBus addresses are programmed
to 51h, 53h, 54h, 55h by pre-installed resistors R02-R05. An LED provides visual indication that VDDB
(5V) is present.
Lastly, the PMBus to USB Adapter connects to the user’s computer where the provided Vicor Digital
Interface Demo GUI is installed.
Figure 2
USB-ADAPTER-1V-B00
Assembly Drawing and
Schematic
TOP VIEW
J0
1
FID01
R04
C01
R01
R02
J0
2
D01
FID02
R06
R05
R08
3
2
1
4
5
6
Chassis
J01
MICRO USB Connector
GND
CHASSIS
ADDRESS
GND
3
2
1
4
5
J02
Micro-Lock Connector
GND
VDDE
SCL
SDA
GND
0402
C01
0402
R04
0402
R02
0402
R01
D01
0402
R06
0402
R05
0402
R08
