Remote Programming Setup And Interface; Remote Access Password; Ethernet Interface Connection And Setup - Anritsu LMR Master S412E Programming Manual

1-4 Remote Programming Setup and Interface

1-4 Remote Programming Setup and Interface
Remote programming and operation of the LMR Master is accessed via the Ethernet or USB
interface. The following paragraphs provide information about the interface connections,
cable requirements, and setup for remote operation.
If a password has been set for the instrument, to control access via the Anritsu
Note Web Remote Tools, for example, remote operation using SCPI commands is not
possible.

Remote Access Password

Remote access to your LMR Master may be restricted. This function is valid only with Master
Software Tools (MST) v2.21.1 or later. The purpose of the password is to protect the LMR
Master from unauthorized access when it is connected to the Internet.
After setting the password from the front panel of the instrument, reboot the instrument
(normal power OFF then ON) to provide remote access security. Only one user then has
remote access at any one time.
The password is first set into the instrument, then used via Master Software Tools. When
prompted in MST, enter the password into the password text box.

Ethernet Interface Connection and Setup

The S412E fully supports the IEEE-802.3 standard. Most S412E functions (except power
on/off) can be controlled via an Ethernet connection to a PC connected directly (with an
Ethernet cross-over cable) or through a network. The S412E software supports the TCP/IP
network protocol.
Ethernet networking uses a bus or star topology in which all of the interfacing devices are
connected to a central cable called the bus, or are connected to a hub. Ethernet uses the
CSMA/CD access method to handle simultaneous transmissions over the bus. CSMA/CD
stands for Carrier Sense Multiple Access/Collision Detection. This standard enables network
devices to detect simultaneous data channel usage, called a collision, and provides for a
contention protocol. When a network device detects a collision, the CSMA/CD standard
dictates that the data is retransmitted after waiting a random amount of time. If a second
collision is detected, the data is again retransmitted after waiting twice as long. This is
known as exponential back off.
The TCP/IP setup requires the following:
• IP Address: Every computer and electronic device in a TCP/IP network requires an IP
address. An IP address has four numbers (each between 0 and 255) separated by
periods. For example: 128.111.122.42 is a valid IP address.
• Subnet Mask: The subnet mask distinguishes the portion of the IP address that is the
network ID from the portion that is the station ID. The subnet mask 255.255.0.0, when
applied to the IP address given above, would identify the network ID as 128.111 and
the station ID as 122.42. All stations in the same local area network should have the
same network ID, but different station IDs.
• Default Gateway: A TCP/IP network can have a gateway to communicate beyond the
LAN identified by the network ID. A gateway is a computer or electronic device that is
connected to two different networks and can move TCP/IP data from one network to the
1-2 PN: 10580-00319 Rev. N
General Information
S412E PM