Lathem AirTime AT-MSX user manual

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Wireless Sync Device
Model AT-MSX

Installation & User’s Guide

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THIS EQUIPMENT COMPLIES WITH FCC CLASS-B REQUIREMENTS PURSUANT SUBPART J OF PART-15 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. WARNING: Changes or modifications to this product not expressly approved by the party responsible for compliance could void the u

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Installation & User’s Guide Operation When connected to AC power, the AT-MSX automatically powers up and an LED on the case bottom flashes 3 times then begins flashing every 2 seconds indicating that the AT-MSX is waiting to receive an AirTime radio signal. The LED will flash brighter upon receipt of an AirTime signal. The AT-MSX will set its internal clock to the exact time and the LED will flash every second to indicate normal operation. The unit will transmit the Lathem RS485 digit

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Installation & User’s Guide Install Steps Important: Before installing the AT-MSX, verify that an AirTime Transceiver is installed and properly transmitting. You should manually initiate the transmission of the AirTime signal by pressing the TRANS button on the front of your transceiver. 1. Mount the AT-MSX within range of an AirTime transceiver’s signal. It is important that the AT-MSX be mounted upright as described to achieve maximum antenna reliability. » After locating where t

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Installation & User’s Guide 2. Pull and disconnect the removable terminal block and connect the remote devices in the RS485 or Dry Sync connecters. (IMPORTANT: RS485 requires proper polarity + to +, - to -.) Once the connections are secure, reconnect the removable terminal block. Apply a minimum of 5.0 to 7.0 lb-in torque for tightening field wires into the removable terminal block. Use Cat-3 or Cat-5 Twisted-Pair Wires. Use only Copper Wire. 3. Insert plug from AC power adapter in

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Installation & User’s Guide Wiring Diagram An AT-MSX correcting a Lathem RS485 device and/or a dry contact device. Specifications Power: 6VDC/ 300 mA wall-mount power supply. UL approved Frequency 452 MHz Channels 1x10 = 10 RS485 Connection D - / D + terminal block Relay Connection Terminal block Relay Rating 10 VA max / 0.5 A max switch current Dimensions 6.5” wide x 3.8” tall x 2” deep Weight 0.6 pounds Operating Temperature 0 ~ + 50’C Page 4

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Installation & User’s Guide 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