Vemco HR2, User Manual

Page: 16 / 212

1.3 VEMCO High Speed Offload Cable (HSOC)
To communicate with the
HR2
receiver, Fathom uses a VEMCO high speed communication cable. The
cable consists of two parts:
l
the main cable (black) which connects to the receiver, and
l
the
interface box with USB cable
(white) that connects to the computer.
Figure 1-4: VEMCO High Speed Offload Cable
1.3.1 Communication Cable Information
Make note of the following capabilities and limitations in the use of the HSOC cable:
l
The HSOC is powered by a PC USB port or USB bus that can provide 500 milliamps . It can
offload data from an HR2 receiver that has an expired internal battery or if the battery has been
removed.
l
The HSOC
should not be used
with a USB bus that does not have 500 mA available (e.g. USB
bus not powered externally).
l
If the internal battery is dead/missing, and you plug in the HSOC, you’ll have to wait for the HR2
receiver to
boot before you can "talk" to it.
l
The HSOC supports data transfer rates up to 12 million bits per second (12Mbps). Speed is
reduced if used with cables greater than 10m in length.
7
1.3 VEMCO High Speed Offload Cable (HSOC)