Anritsu BTS Master MT8221B, User Manual

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Instrument Overview 2-11 Test Panel Connectors
BTS Master UG PN: 10580-00207 Rev. E 2-17
USB Interface – Type Mini-B
The USB 2.0 interface can be used to connect the MT8221B BTS Master directly to a PC.
The first time the MT8221B is connected to a PC, the normal USB device detection by the
computer operating system will take place. The CD-ROM that shipped with the instrument
contains a driver for Windows XP that is installed when Master Software Tools is installed.
Drivers are not available for earlier versions of the Windows operating system. During the
driver installation process, place the CD-ROM in the computer drive and specify that the
installation wizard should search the CD-ROM for the driver.
USB Interface – Type A
The MT8221B BTS Master can also be a USB Host and allow various USB Flash Memory
devices to be connected to the instrument for storing measurements, setups, and files.
Headset Jack
The headset jack provides audio output from the built-in AM/FM/SSB demodulator for testing
and troubleshooting wireless communication systems. The jack accepts a 2.5 mm 3-wire
miniature phone plug such as those commonly used with cellular telephones.
Ext Trigger In
A TTL signal that is applied to the
External Trigger
female BNC input connector causes a single
sweep to occur. In the Spectrum Analyzer mode, it is used in zero span, and triggering occurs
on the rising edge of the signal. After the sweep is complete, the resultant trace is displayed
until the next trigger signal arrives. This port is also used for External Clock Recovery in
T1/T3/E1 operations (described in the Backhaul Measurement Guide). Refer to
Appendix A, “Measurement Guides” for reference to the Backhaul Measurement Guide,
which also can be found on the documentation disc.
To prevent damage to your instrument, do not use pliers or a wrench to tighten the BNC
connector. Do not overtighten the connector.
IF Out 140 MHz
BNC connector for Zero Span IF Output.
To prevent damage to your instrument, do not use pliers or a wrench to tighten the BNC
connector. Do not overtighten the connector.
SPA RF In and VNA Port 2
50 Ω Type-N female connector.
To prevent damage to your instrument, do not use pliers or a plain wrench to tighten the
Type-N connector. Do not overtighten the connector. The recommended torque is 12 lbf·in to
15 lbf·in (1.36 N·m to 1.70 N·m).
Ref Out 10 MHz
10 MHz Reference Out, BNC, female 50
Ω
.
To prevent damage to your instrument, do not use pliers or a wrench to tighten the BNC
connector. Do not overtighten the connector.
Note
For proper detection, Master Software Tools should be installed on the PC prior to
connecting the BTS Master to the USB port.