Lathem LTR-RSS User Manual

LTR-RSS

REMOTE SCHEDULE

SELECTOR and

BELL RINGER

Installation & User’s Guide

THIS EQUIPMENT COMPLIES WITH FCC CLAS S-B REQUIREMENTS

PURSUANT SUBPART J OF PART-15

This device complies w ith Part 15 of t he FCC Ru les. Opera tion is subj ect to t he follow ing
two conditions: (1) this d evice may not cause harmful interference, and (2) this d evice
must accept any interferen ce received, including interferenc e that may cause undesired
operation.

WARNING: Changes or modifications to this product not expressly approved by the party
responsible for compliance could void the user’s authority to operate this e quipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause har mful interference to radio or t elevision reception, which can be
determined by turning th e equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a ci r cuit different from that to which the r ecei v er i s
connected.

- Consult the dealer or an experienced radio TV technician for help.

Cet appareil numerique de la classe B est conforme a la norme NMB-003 du C anada.

This Class B digital apparatus com plies with Canadian ICES-003.

OPERATION, INSTALLATION

AND MAINTENANCE MANUAL

“REMOTE SCHEDULE SELECTOR”

and

“BELL RINGER”

LATHEM TIME CORP

Doc #USG0026B

“LTR8-512, LTR-RSS and “MasterLink”

are Registered Trademarks of Lathem Time Corp., Atlanta,

GA, USA

©2004 LATHEM TIME CORP

LTR-RSS User’s Guide

Welcome to the LTR-RSS

(Remote Schedule Selector/Bell Ringer)

The “Remote Schedule Selector/Bell Ringer” for the LTR8­512 Master allows you to immediately activate any one (1) of
the eight (8) possible schedules stored in the Master or
deactivate all schedules. Your selection remains in effect until
you make another schedule change (at the LTR-RSS, the
MasterLink Software or the Master itself) or when a
programmed schedule change occurs.

The Remote Schedule Selector/Bell Ringer contains an
electronic circuit attached to the back of a cover plate for a
double-gang switch-type electrical box (not supplied). This
circuit consists of a low-power microprocessor, a 4-screw
terminal block and dip switches to select your Master’s
‘address’ and baud rate. Two of the screws on the terminal

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LTR-RSS User’s Guide

block connect a twisted-pair (typically Cat-3) low-voltage
cable to the Master’s RS-485 port, while the other two screws
connect continuous 9-24V AC/DC power to the unit.

Circuit Board

D­D+
~
~

12345678

B

64 32 16

A

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LTR-RSS User’s Guide

On the face of the cover plate, you will see a 10-position knob
(to select which schedule you want active), a button to send
your changes to the Master, and status lights which confirm
that your changes occurred.

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