Instruction manual

JUPITER CM-4400 Control Module Installation and Operating Manual 205
The Time Standard Table
The system will synchronize with a designated Network Time Protocol
(NTP) server if the Time Code Reader (TCR) host does not respond. If there
is an error with the house time code, all of the CM-4400s could stay syn-
chronized with a designated time server. The Time server may be synchro-
nized to an accurate national standard.
Finally, if the first two hosts do not r
espond, a CM-4400 could be selected
as the master and all CM-4400s synchronized to it. While this would still
allow time to drift it would force all CM-4400s to drift together.
In the final analysis, each time host is just an IP address and the CM-4400
will attempt to synchr
onize with each one in the priority specified. Any
valid IP address can be placed in each of the fields or each can be left empty
(no synchronization).
Time Standard Table Description
Figure 151. Time Standard Table Example
Board: Select the name of the CM-4400 board as entered on the Network
Description table.
NTP Host / Address: Create a host name (if one is preferred) if a Network
Time Protocol host computer will be used to supply time information
(or used as a backup source). As a minimum the IP address of the NTP
host must be entered.
TCR Host / Address: if there is more than one CM-4400 in the system where
one CM-4400 is connected to a time source and acts as a “Time Code
Reader” host for the other. If this is the case, enter the name of the host
CM-4400 as found on the Network Description table. Enter the IP
NTP Host
1
Time Standard
Board
CM1
Address TCR Host AddressTCR Host Address TCR Host AddressRTC Host Address
Offset from GMT (+/−HH:MM)Time Zone Name
USA_East
−05:00
Day (1−31)DST Start Month (MMM)
APR
1
Hour (HHAM/PM)
02AM
Day (1−31)
28
Hour (HHAM/PM)
02AM
DST End Month (MMM)
OCT
8766_15r0