WJ Broadband Fixed Wireless System Transceiver Installation and Replacement Instructions Revision Date: July 21, 2000 To be used with all of the following Standard Power Transceivers: $X1121 MADS Standard Power Point-to-Multi point Transceiver SX1121A MADS Standard Power Point-to-Multi point Transceiver with Integrated Antenna $X1123 MDSE Standard Power Point-to-Multi point Transceiver $X1123A MDSE Standard Power Point-to-Multi point Transceiver with Integrated Antenna $X1126A UNI Standard Power Point-to-Mu
WJ Broadband Fixed Wireless System Transceiver Installation and Replacement Instructions Product Numbers: 8X1121, SX1121A, $X1123, SX1123A, SX1126A, $X1127. This document explains how to install, remove, or replace the standard power wireless transceiver component of a broadband fixed wireless system. It includes instructions for powering down the system, removing an installed transceiver, and installing a new transceiver.
Wireless Transceiver Overview The wireless transceiver (often referred to as the outdoor unit or ODU) is the control and data interface to the indoor router subsystems. It provides up/down conversion for IF to RF frequencies and power amplification. The wireless transceiver consists of the following components: » RF head « Connector port for IF input/output, control, and power + Connector port for antenna Figure | shows three views of the common chassis used for the standard power Wireless Transceiver.
Table 1. Wireless Transceiver Connectors Connector Type Input/Output Function Antenna connector N-type weatherized (female) Input and Output Antenna connection IF Input! Control/Power ~~ N-type weatherized (female) Input and Output Carries receive and transmit IF signals, power, IF reference frequency, and RF subsystem control interface Installation Prerequisites This section provides a list of parts and tools you need to install, remove, or replace a wireless transceiver at the antenna site.
Safety Guidelines Following are safety guidelines that you should follow when working with any equipment that connects to electrical power or telephone wiring.
Electrical Equipment Guidelines > p> Follow these basic guidelines when working with any electrical equipment: * Disconnect all power and external cables before moving a chassis. * Do not work alone if potentially hazardous conditions exist. «Never assume that power has been disconnected from a circuit; always check. * Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
‘Fable 2. Warning Antenna Installation Instructions: FCC RF Exposure Limits The WJ SX1121 and SX1123 transceivers, used in conjunction with 18 and 24 dBi gain antennas, are to be employed in point -multiplication applications only. The transceivers are either provided with an integral antenna, or provided without an integral antenna.
A Warning Antenna Installation Instructions: FCC RF Exposure Limits The WJ SX1126A and SX1127 transceivers, used in conjunction with their respective antennas are to be employed in point-to-multi point applications only. The antenna used for the SX1127 shall be professionally installed on a permanent structure for outdoor operations. The installer is responsible for ensuring that the systems using high-gain, directional antennas are used exclusively for fixed, point-multiplication operations.
Installing the Wireless Transceiver ‘This section provides instructions for installing the transceiver on the desired platform, NOTE: These instructions apply to the transceiver manufactured and supplied by Watkins-Johnson Communications Inc, Transmit and Receive Frequencies The standard power transceivers are provided with the transmit frequency and the receive frequency set at the factory. Each mode! can be supplied with transmit on the high frequency band or transmit on the low frequency band.
Figure 2. Rear view of chassis with mounting hardware in foreground, To the left is the gray mounting arm and to the right is the bracket used for wall and pole mounting. For wall mounting, U-bolts are not used. Step 2 Connect cables to transceiver. » Install right angle N-type adapter to IF / control / DC port and if necessary antenna port. * Suggested vendors for N-type connector Delta Electronics Am phenol Corp. Huber Sumner Inc. Mfg. Corp.
Figure 4. RF cable mounted to antenna port via right angle N-type connector. Step 3 Connect ground wire to transceiver. * Attach ground lug supplied in mounting kit to an approved ground wire. Then attach ground lug to chassis. See Figure 3. Figure $. Location to attach ground lug on transceiver ADD PICTURE HERE OF $X1121, WITH NEW GROUND LUG MOUNTING LOCATION SHOWN Step 4 Attach transceiver to bracket.
Figure 6. Bracket used for wall and pole mount. For wall mount, U-bolts are not used. PROCEDURE 2 {For pole mounted transceiver without integrated antenna) Step 1 Step 2 Step 3 Step 4 Fasten bracket to transceiver. * Mount bracket on transceiver with supplied mounting kit bolts, See Figure 6. Connect cables to transceiver. Same as Procedure 1. + Install right angle N-type adapter to IF / control / DC port and if necessary antenna port.
Figure 7. Attaching the mounting bracket to the pole. Note, partial section of bracket is shown. PROCEDURE 3 {Gray mounting arm for transceiver with integrated antenna) Step 1 Attach angled mounting bracket to gray mounting arm as shown in Figure 2 and 8. Figure 8. Attaching the gray mounting arm fo the angled mounting bracket, and the angled mounting bracket to the chassis.
Step 2 Attach angled mounting bracket to chassis. See Figure 8 and 9. Step 3 Attach IF / control / DC cable as in Procedure 1 and 2. Mount gray mounting arm to wall. Figure 9. Attaching the angled mounting bracket to the chassis.
Cabling the Wireless Transceiver A A Warning Ensure that the power/breaker switches (on the power feed panel) for both the Main and Diversity transceiver are in the OFF position. Warning Cisco and WI strongly recommend that you use some type of cable-connection weatherproofing on all outdoor RF and IF cable connections to protect them against long-term degradation from weather effects. This is typically done by applying a suitable seal to the N-type connectors after they have been connected and verified.
Removing and Replacing the Wireless Transceiver Follow these instructions to remove and replace the wireless transceiver.
Replacing the Wireless Transceiver Replacing the wireless transceiver involves the following tasks: Step 1 Mounting the Wireless Transceiver on the Antenna Mast Step 2 Attaching the Cables Step 3 Reinstating the Power Remounting the Wireless Transceiver on the Antenna Mast Mount the replacement transceiver on the mast using the instructions in the section of this document called Installing the Wireless Transceiver.
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