AMPS Band Transceiver TR850 INSTALLATION AND OPERATION GUIDE FOR SYSTEM OPERATORS
Proprietary to VCom Inc. All rights reserved. No part of this publication may by reproduced in any form or by any means or used to make any derivative work (such as translation, transformation or adaptation) without written permission from VCom Inc. VCom Inc. reserves the right to revise this publication and to make changes in content from time to time without obligation on the part of VCom Inc. to provide notification of such revision or change. VCom Inc.
Thank-you for purchasing this product and welcome to VCom! You have chosen an innovative solution from a leading technology design center in the ongoing TV & data delivery revolution. No doubt you’ve been thinking that the future of your television delivery system includes new technologies such as Digital TV, Internet Over Cable, Wireless Cable.
SAFETY PRECAUTIONS 1. Before installing and operating this equipment, read all Safety, Installation and Operating sections. Retain this manual for future reference. 2. Follow all instructions — Failure to do so may result in damage to the unit or severe personal injury. 3. Servicing should not be attempted by the user. There are no user serviceable parts inside. Refer all servicing to factory qualified personnel. 4.
INDEX 1.0 GENERAL INFORMATION ......................................................................................................... 6 1.1 Functional Overview................................................................................................................................6 1.2 Module Features.......................................................................................................................................6 1.3 Specifications ..............................................
The VCom TR850 is an AMPS Band Transceiver for use in wireless systems. The TR850 integrates an LNA, upconverter, power amplifier, RF and IF diplexers to provide a one-box solution for two-way wireless RF communications. The TR850 and antenna are situated outdoors and connected to a cable modem indoors by standard RG-59 cable. A single RF connector on the weatherproofed enclosure provides the interface to the transmit/receive antenna for rapid setup.
! " TRANSMITTER SPECIFICATIONS IF Input Frequency RF Output Frequency Linear Output Power Output P1dB Spectral Mask Gain Gain Flatness (Frequency Response) Gain Stability over Temperature Phase Noise Spectral inversion IF Level for RF Activation RF Activation/Mute Response Time 17-42 MHz 824-849 MHz +24 dBm at RF port +27 dBm at RF port FCC CFR 47 Part 22.917 20 ± 2 dB at 23°C ± 1.0 dB in any 3MHz band ± 2.
# ! $ % & # Carefully remove the equipment from its packing material and set it on a solid surface, such as a table or desk. If it appears damaged in any way, notify the carrier, and keep all packing materials for inspection by the carrier’s agent. % & # % & '( The following hardware is included in the box for mounting the TR850 to the pole: • • 1 V-bolt 2 ¼”x20 flange locknuts for connecting V-bolt and pole catch to the pole The TR850 was designed for mounting to a pole with a diameter of 1.0" to 1.
% & Mount the antenna according to the manufacturer’s instructions. The TR850 is intended for use with planar arrays and Yagi antennas. Please consult table 2.2B for further information. TABLE 2.2B: ANTENNA LIST Transceiver Power [Watts] 0.25 0.25 0.25 [dBm] +24 +24 +24 Antenna Type Antenna Gain Yagi Flat planar array Window mount planar array [dBi] 10 dBi 9 dBi 7 dBi Included with the TR850 unit is a self-adhesive label for application to the antenna.
) & Connect the TR850 to the Antenna via the F-Connector DIAGRAM 2.3A: CONNECTION TO THE ANTENNA VCom Inc. TR850 Manual; ml_tr850_01 (January 2005) Approved: C.H.
*) & + ) , - Connections to the TR850 are made as shown in Diagrams 2.3A and either 2.4B or 2.4C depending on which power supply and inserter came with the TR850. The power inserter has three connections: DC POWER Connect to wall adapter with RG-59 cable with F connectors TO MODEM Connect to cable modem TO TRANSCEIVER Connect to TR850 WARNING! If the power inserter is not connected correctly, the TR850 will not operate, and there is the potential to damage the cable modem.
DIAGRAM 2.4B: CONNECTION TO CABLE MODEM VIA POWER INSERTER USING CPE POWER SUPPLY & INSERTER VCom Inc. TR850 Manual; ml_tr850_01 (January 2005) Approved: C.H.
(. ! " %) Many transceiver problems can be attributed to environmental conditions (including vibration), which can loosen cables and permit moisture to penetrate the connectors. It is highly recommended to seal the connectors using a technique similar to the one described below. This will provide moisture protection and keep the connections tight. For your convenience, VCom has provided two 6 inch lengths of rubber selfamalgamating sealing tape to use on the two connections of the TR850.
STEP 3 When done, the connection should be tightly wrapped with tape, with a good seal to the cable. DIAGRAM 2.5C: WATERPROOFING CONNECTION – STEP 3 VCom Inc. TR850 Manual; ml_tr850_01 (January 2005) Approved: C.H.
. . / 2 0 1 ) + )/ - VCom warrants its products to be free from defects in workmanship or materials for a period of two years. The warranty begins on the date of the original shipment from VCom to its customer. No claim may be allowed for expenses incurred in installation or use. No other expressed or implied warranties shall apply to the goods sold.
! )& % . 2 5 -! Items returned beyond the warranty period or items that do not qualify for warranty service are subject to additional out-of-warranty repair charges. Descriptions of these charges and warranty exemptions are below: 1) Repair turnaround time is typically 5-14 business days after receipt of the item at VCom. A Flat Rate Repair Charge will apply to all out-of-warranty items. Flat Rate Repair Charges are subject to change without notice.
150 Cardinal Place Saskatoon, Saskatchewan S7L 6H7 Canada Tel: (306) 955-7075 Fax: (306) 955-9919 www.vcom.com sales@vcom.
