Hochiki TE-TLE - Manual (Page 8)

8 Hochiki TE-TLE True Loop Emulator – User Manual
Hochiki Europe (UK) Ltd 2-3-0-416/Mar04/Iss3
LED Meaning
Off No voltage on loop
Blinking Voltage & polling on loop
On Voltage but no polling
Any changes that happen at the computer end are almost immediately mirrored at the
Interface. However, if a large number of changes are required at the same time (for
instance, lots of devices added at the same time), then there may be a small delay before all
the information is transmitted to the Interface. In this case, a message is shown in the
bottom status bar of “Downloading device status…”.
Also on the front panel there is an RS-232 9-way D-type (DB9) connector to connect with a
computer, a socket for power with a Power LED and an earth stud.
NOTE: To comply with EMC regulations the Interface must be connected to a suitable
earthing source. The earth stud is provided on the front panel for this purpose.
Switching the Interface On
When the mains power supply is plugged in and connected to the Interface, it starts up and
runs some internal diagnostics.
While in this state, the Power LED is off and the other LED's scan left and right. The Loop
Terminals are set to Open Circuit and do not generate any current responses.
Interface RAM requirements
To run the TE-TLE software version 2.0 or later requires at least 4 megabits of RAM memory
to be present within the interface. If the interface has less RAM than this you will be
presented with a warning on-screen informing you of this the first time you run the software.
This warning is shown in the status bar above the Start Button in Windows:
You can double-click here to display a page within the software's help files explaining further.
As a guide, any interfaces produced by Hochiki Europe with 'cream' coloured cases will most
likely not have the extended RAM capacity. In this instance you can return your interface to
either Hochiki Europe (UK) Ltd or Hochiki America Corporation who will undertake to
increase the RAM memory FREE OF CHARGE. Please contact your local Hochiki office for
further details (see page 2 for contact details).