User's Manual

ADCP-75-198 • Issue 1 • October 2005
Page 8
© 2005, ADC Telecommunications, Inc.
3.2.2 Coaxial Cable Connections
The RF interface between SDR PCIx Host card and the GPS is supported through a pair of type
SMA female connectors mounted on the host card front panel. One connector provides the
coaxial cable connection for the REF (10 MHz sine wave) signal. The other connector provides
the coaxial cable connection for the PPS (1 pulse per second) signal. Use the following
procedure to install the coaxial cables and connect them to the host card:
1. Obtain the required lengths of high performance, flexible, low loss 50-ohm coaxial
communications cable (RG316 or equivalent) for all coaxial connections.
2. Route the timing input/output coaxial cables (if not already routed) between the SDR PCIx
Host card and the GPS interface device (per system design) and cut to the required length.
Allow sufficient slack for dressing and organizing cables at the SDR PCIx Host card.
3. Terminate each cable end with the appropriate male connector following the connector
supplier's recommendations.
4. Connect the cables to the connectors on the SDR PCIx Host card as shown in Figure 2.
Figure 2. Coax Connectors
5. Dress and secure cables at the SDR PCIx Host card per standard industry practice.
6. Connect the coax cables to GPS receiver as specified in instructions provided with that unit.
19311-A
COAX
CONNECTORS
(TO GPS)