WEMPE ENI
secondary clocks interface
1.3.1 NTP Server
Select Master clock Connection Type "WEMPE Master clock 20102, NTP server"
Enter the static IP address of a primary NTP server and, if desired, a secondary NTP server.
This step can be omitted, if the addresses are supplied by a DHCP server.
Specify the Fixed Offset between UTC (which the NTP server sends) and LT.
By applying the changes the network stack will restart and you will have to reconnect the web
browser after a few seconds.
1.3.2 Wempe Master Clock 20100 or 20101
Select Master Clock Connection Type "WEMPE Master Clock 20100, 20101".
Select ENI V1 protocol depending on the Master Clock hardware and software. Refer to table
4, ENI V1 protocol compatibility, to pick the right version.
Select the time to display (UTC, LT or Worldtimeclock). The latter displays a fixed offset to
UTC, which has to be specified in the field "Fixed Offset".
By applying the changes the network stack will restart and you will have to reconnect the web
browser after a few seconds.
Further ENI configuration can be done on the Master Clock's web interface, see it's manual.
Master Clock
Rev Master Clock Software Version
1
Select ENI V1 Protocol
20100
V1.02
20101
0
< 1.11
V1.1x
20101
0
>= 1.11, < 2.0
V1.3x
20101
1
>= 2.0, < 2.4.13
V1.1x
20101
1
>= 2.4.13
V1.3x
table 1, ENI V1 protocol compatibility
1
Obtain the Master Clock software version from BEMO information screen or web interface.
1.4 Needed Ethernet ports / protocols for your firewall configuration
ENI Receive
Family
Port
Service
Purpose
UDP
68
DHCP
DHCP Server sends an offer / ack
TCP
80
HTTP
Access to the web interface
UDP
161
SNMP
Access to the SNMP Agent
UDP
6234
Bootloader
Firmware update (only available in firmware update mode!)
UDP
50403 Proprietary
Master Clock time and configuration protocol
ENI Transmit
Family
Port
Service
Purpose
UDP
67
DHCP
Sending DHCP discover / request
UDP
123
SNTP
Query the configured NTP server
UDP
162
SNMP Trap
Sending SNMP Trap PDUs to the configured target / manager
UDP
30303 Announce
Sending an announce message at startup and address change
UDP
50404 Proprietary
Master Clock time and configuration protocol
