ESE ES-185U, Operation And Maintenance Manual

Page 6

ES-185U through a network connection. It is replaced with a picture of the ES-185U.
The three additional tabs are described here.

The 

NTP Settings

 tab allows the user to assign a permanent IP address for the

ES-185U and set up other network settings of the ES-185U. The user may enter the
server IP address, the server port, the subnet mask, the gateway address and the
DNS server. Typically, the server port is 123 for NTP broadcasting. Click on 

Send

Settings

 to update the ES-185U if any settings were changed.

The 

Broadcast Settings

 tab allows the user to specify when a broadcast is made. The

user may also enter up to three broadcast addresses. A time in minutes (1 – 500)
should be entered into the 

Send Broadcast every X minute(s)

 box. Three broadcast

addresses may be entered as well. Enable individual addresses by checking the
corresponding 

Enable

 box. Disable individual addresses by unchecking the

corresponding 

Enable

 box. Click on 

Send Settings

 to update the ES-185U if any

settings were changed.

The 

Password

 tab allows the user to enter a password up to four characters in length.

Check the 

Enable Telnet/Network Password

 box to enable the password. Enter the

password in the 

Password

 box and re-enter the password in the 

Re-enter Password

box. Click on 

Send Settings

 to update the ES-185U if any settings were changed.

5.4.3.2 Web Interface

The settings of the ES-185U may also be set up through a web page interface. The
Master Control Panel software is not required if using the web page interface. A Java
enabled browser with the Java Runtime Environment installed is all that is required.

Access the web page interface by pointing your favorite browser to the IP address of
the ES-185U. If an IP address has not been assigned to the unit, refer to section 5.4
for information on how to initially assign an IP address to the ES-185U. All of the
features of the Master Control Panel described in sections 5.3 and 5.4.3.1 are
accessible through the web page interface.

5.4.3.3 Telnet Session

The settings of the ES-185U may also be set up through a telnet session. The Master
Control Panel software is not required if using a telnet session.

Follow the instruction described here to connect to the ES-185U through a telnet
session.

Type “telnet [ES-185U IP address] 9999” and press enter to go into the setup mode.
The notation [ES-185U IP address] should be replaced with the actual IP address that
the ES-185U was assigned through either the DCHP Setup or the Fixed IP Address
Setup.

All of the features of the Master Control Panel described in sections 5.3 and 5.4.3.1
are accessible through a telnet session. Follow the prompts to set up the ES-185U as
desired.

6.0 ANTENNA

An "active" GPS Antenna (1.575 GHz) with 16’ 5” cable is supplied with the ES-185U. ESE has conducted a
series of tests with the purpose of determining a maximum cable length (with or without amplification). A summary
of the tests and the alternatives are discussed in section 11. Proper installation of the Antenna Module is
imperative for proper operation and continued life of the antenna and clock. See section 10.

7.0 BATTERIES

The ES-185U is supplied with a built-in Battery Back-Up/Charger System. The battery is capable of maintaining
the ESE (TC89 and TC90), 1 PPS and ASCII outputs during a power outage for up to 4 hours. The SMPTE and
IRIG-B outputs are not maintained during power outages. The display is disabled during power outages. If
continuous displays during power outages are required, a UPS (Uninterruptible Power Supply) is suggested.
Note: Turn off the battery during shipment or any extended periods of time without main power.

An internal 3-volt lithium coin cell battery maintains user settings during periods without power. The battery is
capable of maintaining the settings for up to four years. If replacement of this battery is required, it is easily
removed from the printed circuit board mounted coin cell holder.