2-5 Test Panel Connector Overview Instrument Overview
2-10 PN: 10580-00318 Rev. P S412E UG
Test Panel Connectors
External Power
The external power connector (refer to item “9” in Figure 2-8 on page 2-9) is used to power the
unit and for battery charging. Input is 12 VDC to 15 VDC at up to 5.0 A. The green flashing
Power LED indicates that the instrument has external power.
USB Interface – Type A
The LMR Master has two Type A USB connectors (refer to item “10” in Figure 2-8) that
accept USB Flash Memory devices for storing measurements, setup data, screen images, and
firmware updates.
USB Interface – Mini-B
USB 2.0 Mini-B connector (refer to item “7” in Figure 2-8) can be used to connect the
LMR Master directly to a PC. The first time the LMR Master is connected to a PC, the normal
USB device detection by the computer operating system will take place. The CD-ROM that is
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.
LAN Connection
The RJ-45 connector (refer to item “8” in Figure 2-8) is used to connect the LMR Master to a
local area network or directly to a PC with an Ethernet crossover cable. Integrated into this
connector are two LEDs. The amber LED shows the presence of a 10 Mbit/s LAN connection
when on, and a 100 Mbit/s LAN connection when off. The green LED flashes to show that
LAN traffic is present. For additional information about the LAN connection, Ethernet
connection, and DHCP, refer to Chapter 6, “Ethernet Connectivity”.
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 (1/8 inch)
3-wire miniature phone plug such as those commonly used with audio headsets (refer to item
“11” in Figure 2-8).
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, then the user is at risk of receiving a severe or fatal
electric shock.
Note
For proper detection, either Line Sweep Tools or Master Software Tools should be
installed on the PC prior to connecting the LMR Master to the USB port.
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