Mode Selector

Select a VNA Master measurement mode (such as Vector Network Analyzer or Vector Volt Meter) by opening the Mode Selector List Box. Press the Shift key, then the Mode (9) key, and choose a mode from the menu. Use the directional arrow keys or the rotary knob to highlight your selection, and then press the Enter key.

The modes that are available on your VNA Master depend upon the options that are installed and activated. Your instrument may not show the same list as Figure: Mode Selector List Box.

Mode Selector List Box

The connectors and indicators that are located on the test panel of the VNA Master are shown and described in the following sections.

The connectors and indicators that are located on the test panel of the MS2026C, MS2027C, and MS2028C are shown in Figure: MS202xC Test Panel Connectors and are described in the table below the figure.

MS202xC Test Panel Connectors

1	Fan Exhaust Port
2	GPS Antenna Input for Option 31
3	External Reference Input
4	External Trigger Input
5	RF Detector Interface (for Option 5)
6	Test Port 1 (50 ohm) The corresponding LED turns green when the port is transmitting.
7	Bias Input Port 1
8	Bias Input Port 2
9	Test Port 2 (50 ohm) The corresponding LED turns green when the port is transmitting.
10	Port 2 LED
11	External Power Input
12	LAN Connection
13	USB Interface, Type A (2 connectors, Full Speed USB 2.0)
14	USB Interface, Type Mini‑B (Full Speed USB 2.0)
15	Headset Jack
16	Bias Status LED
17	Port 1 LED

The connectors and indicators that are located on the test panel of the MS2036C, MS2037C, and MS2038C are shown in Figure: MS203xC Test Panel Connectors and are described in the table below the figure.

MS203xC Test Panel Connectors

1	External Reference Input
2	Fan Exhaust Port
3	Reference Out (10 MHz)
4	Spectrum Analyzer RF Input (50 ohm)
5	Test Port 1 (50 ohm) The corresponding LED turns green when the port is transmitting.
6	Bias Input Port 1
7	Bias Input Port 2
8	Test Port 2 (50 ohm) The corresponding LED turns green when the port is transmitting.
9	Port 2 LED
10	External Power Input
11	LAN Connection
12	USB Interface, Type A (2 connectors, Full Speed USB 2.0)
13	USB Interface, Type Mini‑B (Full Speed USB 2.0)
14	Headset Jack
15	Bias Status LED
16	Port 1 LED
17	GPS Antenna Input for Option 31
18	External Trigger Input

In Figure: Waveguide‑Coax Adaptor and Waveguide Calibration Components, a waveguide‑coax adapter at Test Port 1 provides test connections, and typical waveguide calibration components are shown below the VNA Master.

Waveguide‑Coax Adaptor and Waveguide Calibration Components

The RJ45 connector is used to connect the VNA Master to a local area network. Refer to Figure: MS202xC Test Panel Connectors, item 12 12. Integrated into this connector are two LEDs. The amber LED indicates the speed of the LAN connection (ON for 10 Mb/s and OFF for 100 Mb/s), and the green LED flashes to show that LAN traffic is present. The instrument Ethernet address can be set automatically using DHCP, or manually by entering the desired IP address, gateway address, and subnet mask. These settings are described in more detail in More About DHCP.

Note

An active Ethernet cable must be connected to the MS20xxC before it is turned ON in order to enable the Ethernet port for DHCP or for a static IP address.

Depending upon local conditions, the port may remain enabled when changing from DHCP to static IP address, when changing from static IP address to DHCP, or when temporarily disconnecting the Ethernet cable.

If the port becomes disabled, then ensure that an active Ethernet cable is attached to the MS20xxC before cycling the power OFF and back ON.

Dynamic Host Configuration Protocol (DHCP) is an Internet protocol that automates the process of setting IP addresses for devices that use TCP/IP and is the most common method of configuring a device for network use. To determine if a network is set up for DHCP, connect the VNA Master to the network and select DHCP protocol in the Ethernet Config menu.

Turn the VNA Master off, and then on. If the network is set up for DHCP, then the assigned IP address should be displayed briefly after the power‑on sequence.

Note	In order to acquire an address from a DHCP protocol network, the VNA Master MUST be connected to the network BEFORE being switched on.

To display the IP address with the instrument on, press the Shift key, then the System (8) key, then the System Options soft key and the Ethernet Config soft key. The IP address is displayed as shown in Figure: IP Address Assigned Using DHCP. For more information about DHCP, refer to More About DHCP.

IP Address Assigned Using DHCP

The USB 2.0 interface can be used to connect the VNA Master directly to a PC. Refer to Figure: MS202xC Test Panel Connectors, item 14 14 for the USB connector location. The first time the VNA Master is connected to a PC, the normal USB device detection will be performed by the computer operating system.

Note	For proper detection, either Line Sweep Tools or Web Remote Tools must be installed on the PC prior to connecting the VNA Master to the PC USB port.

MS2028C Connected to PC via USB Mini‑B

The VNA Master can also act as a USB Host, which allows various USB Flash Memory devices to be connected to the instrument for storing measurements and setups. Refer to Figure: MS202xC Test Panel Connectors, item 13 13.

Note	For proper operation with the instrument, USB Flash Drives should be formatted using either FAT (for drives that are 2GB or less) or FAT32. USB drives with NTFS formatting may not be correctly recognized by the instruments.


	Anritsu Company 1-800-ANRITSU 10450-00030, Rev. F