Spectrum Master UG PN: 10580-00277 Rev. E C-1
Appendix C — LAN and DHCP
C-1 Introduction
This appendix describes network connections for the MS272xC Spectrum Master.
C-2 Ethernet Configuration
LAN Connection
The RJ-45 connector is used to connect the Spectrum Master to a local area network.
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. The instrument IP address is set by pressing
the Shift key, then the System (8) key followed by the
System Options submenu key and the
Ethernet Config submenu key. The instrument Ethernet address can be set automatically using
DHCP, or manually by entering the desired IP address, gateway address, and subnet mask.
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 MS272xC to the network and select DHCP protocol in the
Ethernet Config menu.
Turn the Spectrum 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 up sequence.
Note
An active Ethernet cable must be connected to the instrument 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 instrument before cycling the power OFF and back ON.
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