Viavi CX300 ComXpert, Operation Manual, Page: 41 / 256

Chapter 1 CX300 ComXpert Overview
Controls and Connectors
22130634 CX300 ComXpert Operation Manual Rev. 001
9
Trigger Output Connector
The
Trigger Output
connector is an SMA
type-F connector that sends 1 PPS clock or
10 ms synchronization signals from an
internal timing reference.
Digital Output DC Coupled 5V logic.
NOTE
Do not terminate with 50 Ohm. Minimum termination value is 220 Ohm.
10
REF Output Connector
The REF Output connector provides a
10 MHz sine-wave reference signal at
approximately 0 dBm into 50-Ohms.
11
REF Input Connector
The
REF Input
connector is an SMA type
female connector that supports incoming
10 MHz, 13 MHz, or 15 MHz reference clock
signals from an external frequency source.
Input is AC-coupled 50 Ohm terminated.
The test set’s timing reference is configured
on the
Clock Source screen
. See
“Configuring Timing Reference (Clock
Source)” for instructions.
12
USB Connectors
USB Connectors with attached rubber
covers supporting most USB memory
devices with 32-bit file system.
The USB connectors allow for the use of an
external USB memory to extend storage
capacity or to upgrade the instrument’s
software.
13
Tether Point
Tether Point
with attached rubber cover for
supporting the USB ports cover.
14
GNSS Antenna
The Global Navigation Satellite System
( GNSS ) Antenna connector is an SMA-type
female connector that is used to connect a
GNSS antenna which is used to acquire
timing data.
GNSS connection is configured on the
Clock source Screen
. See “GPS Timing
Reference” for instructions.
Table 1-1 CX300 Top Panel Controls and Connectors (Continued)
Idx
#
Connector Description