Instrument Overview 2-7 Connector Panel
MS2712E/13E User Guide PN: 10580-00251 Rev. T 2-17
To prevent damage to your instrument, do not use pliers or a plain wrench to tighten the
SMA connector. Do not over-tighten the connector. The recommended torque is 8 lbf·in
(0.9 N·m or 90 N·cm).
External Power
This is a 2.1 mm by 5.5 mm barrel connector, 12.5 to 15 VDC, < 4.0 A. The external power
connector is used to power the unit and for battery charging. A green blinking LED near the
Power button indicates that the instrument battery is being charged by the external charging
unit. The indicator is a steady green when the battery is fully charged.
Refer to “External Power On” on page 3-8 and “Power-On Menu” on page 5-6 when controlling
the instrument via external power.
USB Interface – Type A
The Spectrum Master has two Type A USB connectors that accept USB Flash Memory
devices for storing measurements, setup data, and screen images.
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 3.5 mm 3-wire
miniature phone plug such as those commonly used with cellular telephones.
Digital Signal Output (DVB ASI Out) BNC Connector (Options 57, 79)
The digital signal output, BNC female connector is unique to the Bit Error Rate (BER)
options (Option 57 and Option 79) and is present only when one or both of these options are
installed. The Digital Television Signal Analyzer options operations are described in the
Digital Television Signal Analyzer Measurement Guide (refer to Appendix A).
Options 57 and 79 are not available with Option 411 (Ethernet Connectivity).
To prevent damage to your instrument, do not use pliers or a wrench to tighten the BNC
connector. Do not over-tighten the connector.
The DVB-ASI function produces MPEG-TS data output during a BER measurement. This
output can be connected to MPEG-TS analysis equipment to monitor video errors or can be
connected via appropriate ASI to USB demultiplexing and decoding accessories for channel
identification and monitoring purposes.
Warning
When using the AC-DC Adapter, always use a three-wire power cable that is
connected to a three-wire power line outlet. If power is supplied without grounding
the equipment in this manner, the user is at risk of receiving a severe or fatal
electric shock.
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