©2019
Rev 1.0
7
Physical Description
Setting Up and Configuring the PSG Device
Integration of the PSG modules requires attention to maintain effective cooling. Inadequate cooling can
cause the temperature inside the RF housing to rise
above the maximum for this product, leading to
improper performance, reduction of product lifespan or complete product failure. SignalCore suggests
providing either moderate airflow across the RF housing, or if active cooling is not an option, using thermal
interface materials to bond the RF housing to a larger heatsinking surface (i.e. a system enclosure). As each
system configuration into which the device is integrated is unique, detailed cooling options cannot be
provided.
A cooling plan is sufficient when the SC5507A and SC5508A on-board temperature sensors indicate a rise
of no more than 20°C above ambient temperature under normal operating conditions.
Front Interface Indicators and Connectors
The SC5507A is a PXIe-based RF signal source with all RF connectors located on the front face of the
module. Its control I/O is via the back PXIe interface connectors. The SC5508A is a serial controlled core
module, whose RF and I/O connectors are located at the front face as shown in Figure 1. Front face
interfaces and indicators are explained below.
Signal Connections
All signal connections (ports) on the device are female SMA-type. Exercise caution when fastening cables
to the signal connections. Over-tightening any connection can cause permanent damage to the device.
The condition of your system signal connections can significantly affect measurement accuracy and
repeatability. Improperly mated connections or dirty, damaged, or worn connectors can degrade
measurement performance. Clean out any loose, dry debris from connectors with clean, low-
pressure air (available in spray cans from office supply stores).
If deeper cleaning is necessary, use lint-free swabs and isopropyl alcohol to gently clean inside the
connector barrel and the external threads. Do not mate connectors until the alcohol has completely
evaporated. Excess liquid alcohol trapped inside the connector may take several days to fully
evaporate and may degrade measurement performance until fully evaporated.
Tighten all SMA connections to 5 in-lb max (56 N-cm max)
Figure 1. Front view of SC5508A
