LT-4200 Trunked Repeater
See our new
LT-4200L data logger option.
The LT-4200 is for the "dispatch only" channels on any Logic
Trunked Repeater (LTR®) System. The LT-4200 can be easily user
configured for compatibility with either the EF Johnson or Uniden
repeater bus protocols. The LT-4200 will operate flawlessly with
other makes of controllers on the same system. In fact, the
built-in validator can be used to validate other controllers on
the same system that require an external validator! (An LT-4200
costs less than dedicated validator products!).
The LT-4200 is fully self contained and includes every important
Controller feature such as Logic Control Unit, Validator, Billing
Data Generator, and System Manager. Many of the important LT-4200
standard features such as the front panel LCD display are simply
unavailable in competing brands.
* Quick Access to Internal Adjustments
All adjustments are quickly accessible by removing the front
panel with two screws. There's no need to remove the LT-4200 from
the rack or disrupt service to your users!
LT-4200 with front panel removed.
* LCD Display
Only CSI LT Controllers keep you fully informed about what the
repeater is doing while you are at the site. The LCD shows you
the ID code of the current user, RX/TX status, repeater status,
dip switch settings, built-in test, error codes and more. The
standard LT-4200 has LCD messages in English. Please inquire
about availability of other languages.
* Validator
Unlike competing brands, each LT controller stores the entire
validation data base of 5000 User ID's per system (up to 250 User
ID's per repeater, up to 20 repeaters). This approach makes it
virtually impossible for a mobile with an invalid ID to tie up a
channel on the system. The validator also limits a user to
specified privileges such as time of day lockout, etc.
* Billing
Using CSIBASE, you can create two separate prime time intervals
per business day. All other times and weekends are considered
regular time. The LT-4200 then accumulates time (up to 4,660
hours) and hits (up to 65,535) in both regular and prime time
categories for each user ID which can be downloaded when
convenient for billing purposes.
* CSIBASE
Is a DOS based application for your PC that gives you full
control and management of all LT-4200 and LT-4900 controllers on
each system and each site you operate. It operates similar to Z
competitions site management program.
Working offline you can set up all repeaters separately, or set
up one then transfer that programming to the others; set up the
site global parameters; set up the user data etc. When all
programming is completed offline, CSIBASE will upload all data at
once via RS-232 or using a dial up line and an external modem.
At appropriate intervals, you use CSIBASE to download all stored
billing data and to reset the time and hit accumulators.
* DATA LOGGER OPTION
The LT-4200L data logger option allows the LT-4200 to act as a billing data
accumulator for an existing system of controllers which have no built in
billing. The LT-4200L accumulates time and hits for all 5000 potential LTR
users by monitoring the LTR Repeater Bus. And.. Just like the standard LT-4200,
it can act as a repeater controller and validator! Please note, you do
not need the logger with a system of CSI LT products, this is only needed for
upgrading obsolete systems without changing your old controllers.
CSIBASE also allows you to monitor all repeaters on the system at
once displaying activity by user ID, plus create bar graphs of
repeater loading and other useful statistical data.
The normal use of your system is not affected while your computer
is communicating with the LT-4200 to allow you to be in Monitor
Mode, or to transfer data.
* CSI BUS
All LT controllers are interconnected with the CSIBUS (do not
confuse with the repeater bus which connects to all repeaters
including other brands).
The CSIBUS allows all uploading, downloading and programming of
all LT repeaters on a system through the RS-232 port of any LT
unit you choose. This means that only one modem is needed per
system and only one phone call per session.
CSIBUS also permits advanced (proprietary) DID trunking features
only available in our LT-4900.
* Serial Ports
Each LT-4200 has both a front and rear DB-9 RS-232 port. Most
likely, you will connect one of the rear ports to a modem, and
use any front port to Monitor or Program the system using your
laptop while at the repeater location.
* Modem
The LT-4200 supports 300, 1200 and 2400 baud external modems, but
remember, due to CSIBUS you only need one modem per system!
* Cloning
The LT series controllers can automatically sense if you have
added or replaced an LT controller on the bus and automatically
clone the programmed setup parameters to the new unit. There's no
need to use a computer at all! You will see a message on the LCD
informing you that cloning is occurring. This important feature
gets you up and running faster and with less hassle than any
competing controller available.
* Monitor Mode
Using CSIBASE, you can dial up the system and monitor/display all
of the repeaters on the system at once from your office. You will
see the user ID of the current user, and watch handoffs to other
repeaters as they occur and more.
* Repeater Loading
You can determine system loading by analyzing each repeaters
hourly loading bar graph for the previous 48 hours.
* Sharing an LTR® Channel with your Conventional Users
See Application Note on this subject.
You may wish to share your conventional UHF
repeater's) with one
(or more) of your LTR® channels. Our LT controllers have been
designed to be shared repeater compatible with our TP-154 and TP-154 PLUS Repeater Tone Panels. If the TP is in use, the LT will
not trunk to that channel. If the LT is in use, it will sound and
appear just like another user group of the TP when the
conventional mobile user goes off hook.
* Sharing an LTR® Channel with existing Conventional Repeaters
The LT-4200 Cross Busy input can be connected to a receiver that
monitors the shared channel input or output. When the LT-4200
Cross Busy input senses channel activity, it will put a channel
busy message on the repeater bus which prevents trunking to that
channel until it becomes clear.
* CW ID
Each repeater in the system can be independently set to ID any
desired call sign or message in Morse, or CW ID can be disabled.
* Alarms
The system operator can set alarms to occur on various events
such as sense inputs, loss of Repeater Bus or CSI Bus sync or
SMDR call records memory 85% filled (in LT-4900's) etc. The
alarms are sent on a pre-programmed User ID code and from the
repeater on which they are generated. The system operator has
considerable flexibility as to how or when alarms sound, how long
they occur etc.
LT-4200 rear view
SPECIFICATIONS
Mechanical
Height 1.75 inch
Width 19.0 inch
Depth 6.9 inch
Weight: 4.5 lbs.
Trunking Data
Trunking Protocol LTR
No. of Channels 20 Maximum
Validator 250 ID's per channel
5000 ID's per system
BUS Protocol EF Johnson or Uniden
(user selectable)
Adjustments RX Audio, TX Audio,
Squelch/COS, CW ID/Alarm
Input/Output Levels
RX input (Sub code) 20 mVpp - 10 Vpp.
RX input Z 150K ohms, AC Coupled
TX Audio Out 0 - 5 Vpp
TX Audio Out Z 1000 ohms, AC Coupled
TX Subcode 0 - 5 Vpp
TX Subcode Z 5100 ohms, AC Coupled
CW ID / Alarms 0 - 5 Vpp
Signal Processing Filters
RX Subcode LPF 5 Pole
TX Subcode LPF 4 Pole
Subcode Removal HPF 6 Pole
Noise Squelch HPF 5 Pole
LCD Display Two line, 16 characters/line
RS-232 Ports Front and Rear DB-9
300, 1200, 2400 Baud
Power Requirements 12 - 16 VDC
270 mA typ, 350 mA max.
CSI® is a registered trademark of Connect Systems Inc.
LTR® is a registered trademark of E.F. Johnson Co.
|
Raedale Pty Ltd
P.O. Box 945
Ashmore City Queensland 4214
Australia
Phone 61 7 5532 8444
Fax 61 7 5532 8644 |
