Lathem Telephone Accessories LTR RBR User Manual

LTR-RBR  
REMOTE BELL RINGER  
Installation & User’s Guide  
 
OPERATION, INSTALLATION  
AND MAINTENANCE MANUAL  
“REMOTE BELL RINGER”  
LATHEM TIME CORP  
Doc #USG0027A  
“LTR8-512” and “MasterLink”  
are Registered Trademarks of Lathem Time Corp., Atlanta,  
GA, USA  
©2003 LATHEM TIME CORP  
 
Welcome to the LTR-RBR (Remote Bell Ringer)  
Lathem’s LTR8-512 Master Controller for Clocks and Bells is capable  
of storing up to eight (8) Schedules for Bells and Control Zones, each  
of which may contain up to sixty-four (64) multi-function ‘Events’. An  
‘Event’ may be defined by a very simple instruction, such as “Ring the  
Bell on Circuit #4 for 3-seconds every day at 3:00PM”, or it may  
contain a more complicated definition, as, “On Mondays, Wednesdays,  
Fridays and Holidays, Activate Circuits #2, #3 and #4 at 2:45PM for a  
duration of 7-seconds.” While eight Schedules may be stored in the  
Master, the User may select which of the eight may be ‘Active’. As  
time advances each minute, the day and time are automatically  
compared against the Events stored in the Schedules which have been  
selected as ‘Active’. If a match is found, the programmed Event is  
executed. The Master Controller also provides the capability for  
Manually Activated Bells, through the use of KeyPad Function  
[#][3}[#], which allows the user to select one or more of the Bell  
Circuits to be activated by subsequent press of the [#] key.  
The “Remote Bell Ringer”, an accessory for the LTR8-512 Master  
Controller (Firmware v4.08 and above, only), allows an Operator to  
 
select and activate one (1) of the eight (8) possible Bell Circuits or all  
Bell Circuits (those circuits not defined as Clock Control Circuits) in  
the Master Controller. The selection made will execute when the push  
button on the Remote Bell Ringer’s Panel is pressed, and those circuits  
will remain activated until the button is released.  
The Assembly of the Remote Bell Ringer consists of an Electronic  
Circuit suspended beneath a cover plate for a double-gang switch-type  
electrical box (not supplied with the product). The Circuit includes a  
low-power MicroProcessor, a method of selecting the ‘Address’ of the  
Master to be remotely controlled, and a 4-screw Terminal Block for  
Installer Interconnect. Two screws of the Terminal Block are for  
attachment of the Twisted-Pair (Cat-3 typical) low-voltage Network  
Communications Cable to the Master’s RS-485 Port. The other two  
screws are to be used for supplying 9-24V AC/DC as continuous power  
source to the unit.  
On the face of the cover plate are a 9-position Rotary Switch (to select  
the Circuits to be made ‘Active’), a Push Button to send the Command  
to the Master, and an array of lighting Status Indicators by which the  
Operator can receive confirmation from the Master that the Manual  
Bells Command has been accepted and acted upon.  
 
Installing the LTR-RBR  
To install the Remote Bell Ringer, simply set the hidden Address  
Selector switch / jumpers to match the Master’s Programmed Address  
(default = Code 65) and attach the Communication Cable wire-pair  
(with proper polarity) and the low-voltage Power Pair to the Terminal  
Block, then secure the cover-plate to the electrical box with four 6-32  
FH screws.  
 
 
Operational Description  
To use the Remote Bell Ringer, the Operator will first select, via the  
Rotary Switch, which of the Bell Circuits are to be made active.  
Selected Circuits that are not configured as Bell Circuits in the Master  
Controller will be ignored  
y
y
The ‘OFF’ position may be used to de-activate all Bell Circuits  
Positions ‘1’ to ‘8’ may be used to select a single Bell Circuit to be  
made ‘Active’  
y
The ‘ALL’ position may be used to activate all circuits configured  
as Bell Circuits.  
After setting the selected position of the Rotary Switch, the Operator  
should press the ‘ENTER SELECTION’ Push-Button. This will ‘wake-  
up’ the Microprocessor (indicated by a brief ‘flash’ of the indicators)  
which will, in turn, read the Switches and transmit the appropriate  
Command to the Master. It will wait for a reply from the Master, which  
will indicate the Bell Circuits which are now Active, and display that  
information on Lighting Indicators as confirmation to the Operator that  
the Command has been accepted and executed by the Master. The lit  
Indicators will remain active for 2 seconds after the button is released,  
after which the unit will go back to ‘sleep mode’, to conserve power.  
 
Master Control/Remote Bell Ringer  
 
 
Limited One-Year Limited Warranty  
Lathem warrants the hardware products described in this guide against defects  
in material and workmanship for a period of one year from date of original  
purchase from Lathem or from an authorized Lathem reseller. The conditions  
of this warranty and the extent of the responsibility of Lathem Time  
Corporation (“Lathem”) under this warranty are listed below.  
1. This warranty will become void when service performed by anyone  
other than an approved Lathem warranty service dealer results in  
damage to the product.  
2. This warranty does not apply to any product which has been subject to  
abuse, neglect, or accident, or which has had the serial number altered  
or removed, or which has been connected, installed, adjusted, or  
repaired other than in accordance with instructions furnished by  
Lathem.  
3. This warranty does not cover dealer labor cost for removing and  
reinstalling the machine for repair, or any expendable parts that are  
readily replaced due to normal use.  
4. The sole responsibility of Lathem under this warranty shall be limited to  
repair of this product, or replacement thereof, at the sole discretion of  
Lathem.  
5. If it becomes necessary to send the product or any defective part to  
Lathem or any authorized service dealer, the product must be shipped in  
 
its original carton or equivalent, fully insured with shipping charges  
prepaid. Lathem will not assume any responsibility for any loss or  
damage incurred in shipping.  
6. WARRANTY DISCLAIMER AND LIMITATION OF LIABILITY:  
Except only the limited express warranty set forth above, the products  
are sold with no expressed or implied warranties of any kind, and the  
implied warranties of merchantability and fitness for a particular  
purpose are hereby expressly disclaimed. No warranties are given with  
respect to products purchased other than from Lathem or an authorized  
Lathem reseller and any such products are purchased "as is, with all  
faults." In no event will Lathem be liable for any direct, indirect,  
special, incidental or consequential damages arising out of or in  
connection with the delivery, use or inability to use, or performance of  
this product. In the event any limited remedy given herein shall be  
deemed to have failed of its essential purpose, Lathem's maximum  
liability shall be to refund the purchase price upon return of the product.  
7. Proof of date of purchase from Lathem or an authorized Lathem reseller  
is required for warranty service on this product.  
8. This Warranty grants specific legal rights. Additional legal rights,  
which may vary by locale, may also apply.  
9. Should any difficulties arise with the performance of this product during  
warranty, or with any Lathem authorized service centers, contact  
Lathem Time at the address below.  
 
Lathem Time  
200 Selig Drive, SW, Atlanta, GA 30336  
404-691-0405  
Copyright © 2003 Lathem Time Corporation. All rights reserved.  
 

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