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THORLABS PM103 User Manual

THORLABS PM103
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Page 16 MTN023788_D02
PM103x Optical Power Meter Interfaces Chapter 4 Operating Instructions
4.2.3.1.1 Introduction and Prerequisites
Ethernet is the universal communications protocol commonly used for building Local and Wide Area
Networks (LAN & WLAN). Over 40 years ago commercially introduced, this connectivity technology is
still the most widely adopted.
With well-established industry standards, the configuration and adaptation of Ethernet is made easy.
There are supported different technologies to establish point-to-point, hub & spoke, or any-to-any
connections.
Note Important Terms:
OSI and TCP/IP
The OSI (Open System Interconnection) model is a conceptual layer model that characterizes and
standardizes how various software and hardware components involved in a network communication
should divide the work and interact with each other.
TCP/IP is also a layered model, but also describes the commonly used data transfer protocol. In fact, it
is a set of protocols. TCP/IP stands for Transmission Control Protocol and Internet Protocol.
LAN
The abbreviation LAN stands for Local Area Network and describes a network, that is limited to a local
area in terms of its spatial extent.
WLAN
The term WLAN is the abbreviation for Wireless Local Area Network
VPN
A Virtual Private Network (VPN) is a network that imitates a private network using a public one. Thanks
to the VPN connection, it is guaranteed that your internet traffic, including your IP address, remains
encrypted.
IP address. An IP address is an address in computer networks which – like the internet – are based on
the internet protocol. It is assigned to devices that are connected to the network, making the devices
addressable and therefore accessible.
Port
A port is the part of a network address that causes operating systems to assign TCP connections and
data packets to server and client programs. Ports are primarily a feature used to distinguish multiple
connections between the same pair of endpoints.
Thorlabs devices use the standardized TCP port number 80 for http protocols, the registered ports 2000
for SCPI command-based communication with the instrument, and 27007 for firmware updates.
Subnet-mask
In computer networks, the subnet mask or network mask, in conjunction with the IP address,
determines which IP addresses a device in its own network can reach without the aid of a router
Hostname
The hostname is the unique name of a device within a network.
MAC address
The MAC (Media Access Control) address is the number of a device on a data connection. This number is
used to assign data running over the connection to the devices. The MAC address is the hardware
address of each individual network adapter, which serves as a unique identifier for the device in a
computer network.
DHCP
DHCP stands for Dynamic Host Configuration Protocol. It is a standardized

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THORLABS PM103 Specifications

General IconGeneral
BrandTHORLABS
ModelPM103
CategoryRecording Equipment
LanguageEnglish

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