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OMSC-0708 Copyright © 2008 Lathem Time Corporation. All rights reserved. TABLE OF CONTENTS SPECIFICATIONS..................................................... 1 INTRODUCTION ....................................................... 2 QUICK START STEPS.............................................. 3 DIP SWITCH SETTINGS........................................... 8 PROGRAMMING A SECURITYCODE.....................9 UNLOCKING THE KEYPAD.................................... 10 SETTING TIME AND DATE .................................... 10 PROGRAMMING EVENTS (On/Off Controller) ....... 11 PROGRAMMING EVENTS (Bell Ringer)................. 12 PROGRAMMING SIGNAL LENGTH (Bell Ringer) .. 12 MANUAL LUNCH AND BREAKS (Bell Ringer) ....... 13 SIGNAL ON/OFF.....................................................14 MANUAL OPERATION............................................ 14 STANDBY POWER ................................................. 14 RS485 SYNCH ........................................................ 15 WIRING DIAGRAMS ............................................... 15 WARRANTY............................................................ 24 SPECIFICATIONS Input Voltage 115 VAC (220 Optional) Input Frequency 50/60 Hz Input Power 20 Watts Max Standby Power 1.2 Ah, 6 V battery Standby Time 10 Days Timing Accuracy Per line frequency Number of Events 1440 (any combination of weekdays) Signal Duration Programmable – 1 to 99 secs Daylight Savings Automatic (Disable by dip switch) Time Display 12 or 24 hr selectable Comm Port RS485 – Receiver Relays 10 Amp Dry Contact Temperature Range 0 C to 60 C Voltage Range +/ -10 % of input voltage Shipping Weight 7 lb Dimensions 9 .”x 3 .”x 5 3/8” WARNING: This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case, the user, at his own expense, will be required to take whatever measures may be required to correct the interference. Page 1 INTRODUCTION The DWA-S is a single circuit signaling device which can be used as a bell ringer or on/off controller. It is capable of retaining up to 1440 separate events for each day of the week in memory plus a floating lunch and break schedule which can be activated with a single key on the keypad or a remote switch. Automatic adjustment for daylight savings time change is also provided. A liquid crystal display on the front of the unit displays the current time (in 12 or 24 hour format), date, and day of the week, bell or on/off control status, programming prompts, and indication of operation on standby power. A 24-button keypad is used for setting time, programming events, manual operation of bells or controls, initiating lunch or break bells, and on/off control of the schedule. Access to programming functions and manual keys (MANUAL, START LUNCH, and START BREAK) is controlled by a user defined security code. The time keeping ability of the DWA-S is dependent on the power source frequency. A switch setting selects operation based on 50 or 60 Hz. During A.C. power failures, the unit switches to a quartz crystal time base and a 6 volt battery allows the unit to continue to keep time and retain all data for 10 days. Upon power resumption, the battery automatically recharges with current limited to 1.5 Amperes. Page 2 Page 3 QUICK START STEPS Step 1 – Mount Unit to Wall 1. Unscrew 2 left screws to remove left side panel. 2. Slide front panel left. 3. Disconnect cable connector from right side of front panel. 4. Slide front panel left and remove completely. 5. Find a suitable location on the wall that allows at least 10 inches of clearance on the left side to allow the front panel to slide on and off. 6. Mark 3 hole positions on wall for mounting the unit. 7. Remove plastic bushing from back of unit before mounting on the wall. 8. Drill marked holes and install wall anchors in wall if necessary (not provided). Mark Holes Page 4 9. Secure unit to wall using screws (not provided). Step 2 – Swith Off Power to AC Circuit 1. SWITCH OFF THE CIRCUIT THAT WILL FEED AC POWER TO THE UNIT BEFORE PROCEDING. Step 3 – Connect Wires for 115VAC or 24VAC Bells IMPORTANT! This unit is shipped from the factory as a Bell Ringer. To change to an ON/OFF controller, see DIP Switch Setting on page 8. This section provides instructions for wiring 115VAC or 24VAC bells, see Wiring Diagrams on pages 20 – 22 for other options. 1. There are three options for routing wires into the DWA-S: top, back or bottom. Select on of these and remove the plug. 2. Remove cover from terminal strip. Drill Holes Wall Anchor IMPO...