Hirschmann RS20 User Manual

Synchronizing the System Time in the
Network
100
7.2 SNTP
Basic Configuration
Release 6.0 07/2010
7.2 SNTP
7.2.1 Description of SNTP
The Simple Network Time Protocol (SNTP) enables you to synchronize the
system time in your network.
The device supports the SNTP client and the SNTP server function.
The SNTP server makes the UTC (Universal Time Coordinated) available.
UTC is the time relating to the coordinated world time measurement. The
time displayed is the same worldwide. Local time differences are not taken
into account.
The SNTP client obtains the UTC from the SNTP server.
Figure 25: SNTP cascade
GPS
NTP-
Server
ServerClient
Client
Client
Switch
PLC
ServerClient
Switch
ServerClient
Switch
192.168.1.1 192.168.1.2 192.168.1.3
192.168.1.0

Hirschmann RS20 Specifications

General

Mounting	DIN Rail
Operating Temperature	-40°C to +70°C
Protection Class	IP30
Switching Technology	Store-and-Forward
Product Type	Industrial Ethernet Switch
Port Details	10/100 Mbps Ethernet ports
Switching Capacity	3.2 Gbps
MAC Address Table	8k
Management	Web, SNMP
Redundancy	MRP
Ports	8 or 16