Figure 6-6. GridTime 3000 Ports
GridTime™
3000
Software-Enabled Time Server
6.6.1
Admin Port Connections
This section describes how to make connections to the GridTime 3000’s administration ports.
The GridTime 3000 features two ports for device management:
• the admin Ethernet port
• the admin USB-C port.
Either port can be used for:
• device configuration
• monitoring system observables, such as the device's current time.
The IP addresses currently used by the Admin Ethernet and Admin USB-C ports are displayed on the clock info tab
of the GridTime 3000’s LCD See
, these addresses are used to access the web configuration
interfaces, and for performing device management over SNMP.
6.6.1.1
Admin Ethernet Port
This section describes how to connect to the GridTime 3000's admin Ethernet port.
The admin Ethernet port is a standard 10/100/1000 Base-T RJ-45 receptacle intended for connection to a personal
computer (PC) over a direct copper Ethernet link, or through a switched Ethernet network.
Link Negotiation Checks
DHCP Server (Optional)
By default, the admin Ethernet port is configured to use DHCP addressing. First connection to the port should
therefore be made through a switched network with a DHCP server present. If no DHCP server is available, a direct
link can be used, but the user will have to wait for the port to fall back to a link local IP address (~50 seconds of wait
time).
Link Speed Auto-negotiation Support
The admin Ethernet port uses auto-negotiation to establish link speed, so the switch or PC port it is connected to
should also support auto-negotiation.
To make a connection, ensure:
• a copper Ethernet cable terminated with an RJ-45 plug
• your network adapters are compatible with 10/100/1000 Base-T operation
A straight-through or crossover cable can be used as the port is Auto MDI-X.
To connect the cable to the port:
1.
place one hand on the GridTime 3000 to ensure it doesn’t move
2.
with the other hand, gently slide the cable’s RJ-45 plug into the port. Ensure the orientation of the plug aligns
with the port.
3.
connect the other end of the cable to a switch or a PC’s Ethernet port.
Installation
©
2022 Microchip Technology Inc.
and its subsidiaries
Manual
DS00004572A-page 35
