TDT RZ2, Manual, Page: 17 / 736

System 3 1-11
RZ2 BioAmp Processor
scale factor and so forth. Further detail can be found below the table. Also, see the
RPvdsEx Manual
for more information.
Onboard Analog I/O
The RZ2 is equipped with eight channels of 16-bit PCM D/A and eight channels of
16-bit PCM A/D. All 16 channels can be accessed via front panel BNCs marked
Port D and Port E or via a 25-pin analog I/O connector. See “RZ2 Technical
Specifications” on page 1-14, for the DB25 pinout.
PZ Amplifier Fiber Optic Port
The RZ2's primary amplifier input, a high-speed fiber optic port is located on the
back panel. The connectors on the fiber optic pair used for PZ amplifier
communication are color coded for correct wiring. When designing circuits in
RPvdsEx, the PZ amplifier input channels are accessed using the Pipe components.
When the Data Pipe is used to feed signals from the amplifier an MCInt2Float or
Int2Float must be used with a scale factor of 1e-9.
The amplifier inputs can also be accessed using the RPvdsEx MCAIn component
starting at channel 1; however, this access method is less efficient and not
recommended for high channel count applications. Unlike the Legacy Port, this high
speed port can input up to 256 channels at a maximum sampling rate of 25 kHz or
128 channels at a maximum sampling rate of 50 kHz.
Legacy Fiber Optic Ports
The base station can also acquire digitized signals from the Medusa preamplifier,
RA8GA, or other legacy enabled device over a fiber optic cable using the Legacy
ports. Two Legacy fiber optic ports labeled -A- and -B- are provided to support
simultaneous acquisition from up to two Medusa preamplifiers. Each port can input up
Analog I/O Description Components Chan. Notes
Port D Analog
Input
AdcIn 1-8 Standard Configuration (may vary)
Accessed through Port D BNCs or
Analog I/O labeled DB25
Port E Analog
Output
DacOut 9-16 Standard Configuration (may vary)
Accessed through Port E BNCs or
Analog I/O labeled DB25
High Speed
Fiber Optic
Port
Z-Series
BioAmp
Input
(located on
RZ back
panel)
MCPipeIn
PipeIn
recommended
1-256 When the RZ2_Input_MC is
NOT USED, use MCInt2Float
or Int2Float
with a scale factor of 1e-9
MCAdcIn 1-256 No scale required
Legacy
Amp-A
Medusa
PreAmp
Input
AdcIn 17-32 When the RZ2_Input_MC is NOT
USED, apply a scale factor of
.000833
Legacy
Amp-B
Medusa
PreAmp
Input
AdcIn 33-48 When the RZ2_Input_MC is NOT
USED, apply a scale factor of
.000833