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Summary of Contents for Southwest Microwave 380
- Page 1 Southwest Microwave, Inc. Security Systems Division TECHNICAL MANUAL MODEL 380 OUTDOOR MICROWAVE TRANSCEIVER SOUTHWEST MICROWAVE, INC. 9055 S. McKemy Street Tempe, Arizona 85284-2946 TEL (480) 783-0201 FAX (480) 783-0401...
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Page 2: Table Of Contents
MOUNTING ..................................13 POWER WIRING ................................14 CONNECTIONS ................................. 15 ALIGNMENT AND TEST ..............................16 PREVENTATIVE MAINTENANCE ..........................17 OPTIONAL EQUIPMENT ..............................18 WARRANTY AND RETURN INFORMATION ......................18 NOTE: This manual is for Models 380 and 380-33453 March 2003... -
Page 3: Introduction
- Sensitivity and Range. Figure 1A shows the zone of detection (horizontal pattern) for an upright man when Model 380 is mounted 2.5 feet (.75 meters) above smooth earth with its beam oriented parallel to the ground. The Range control adjusts the maximum range of the system and the Sensitivity control primarily adjusts the width. -
Page 4: Theory
In Model 380, the transmitter is periodically turned on and off, but the receiver is turned on only for a short period after the transmitter is turned on. - Page 5 Figure 3 - Overlap of Model 380 Detection Zone Figure 4 shows a block diagram of Model 380. Logic pulses generated by the synchronization phase-locked loop (PLL) and the associated counter and 4-bit comparator provide the command for turning the transmitter on and off at a prescribed rate, and at one of 16 unique periods of time or addresses.
- Page 6 A test function is included in Model 380. When gated on by a +5 to +12 VDC command (at the terminal block), the test function provides a phantom signal into the transmitter and receiver circuits to generate an alarm and test the entire 380 detection system.
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Page 7: Specifications
Model 380 is also equipped with an interference/tamper detection circuit. Should a metal container be placed over the transceiver in an attempt to reduce the detection zone, the DC amplifier will detect a change in mixer peak output, and after about 15 seconds an alarm will be generated. -
Page 8: Site Preparation
Shipping Weight: 10 lbs (4.5 kg) total. Dimensions: Mounting Holes 4.5 in (11.4cm) 2.3 in (5.9cm) 3.5 in. (8.9cm) 10.6 in. (27cm) MAX TILT Dia. ANY DIRECTION 6.0 in. (15.2cm) Figure 5 SITE PREPARATION__________________________________________________________ Clear the detection zone of trees, bushes, tall grass and all other objects that may obstruct, move, shake or vibrate. See Figure 6. -
Page 9: Location Of Transceivers
Be aware that detection zone pattern may penetrate windows, thin wooden doors or partition walls. LOCATION OF TRANSCEIVERS_______________________________________________ Model 380 is normally mounted about 30 inches (76cm) above ground on a post and pointed parallel to the ground to provide detection zone of Figure 1. - Page 10 Figure 9 When Model 380 is used inside a fence always orient the beam so that the detection zone does not include the fence itself because the fence may move with high winds and cause nuisance alarms. Note that Model 380's range cutoff (RCO) capability makes possible a variety of locations, but caution must be observed along the sides of the detection zone to prevent alarms from large moving objects such as trucks which may pass inside the RCO distance.
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Page 11: Multiple Unit Installations
Model 300B/310B in order to provide a long interrupted detection zone. The unique multiplex feature of the Model 380 allows the sensor to operate with up to 15 additional transceivers with no mutual interference, since only one unit is activated at a time. The unit is also built with two (A and B) staggered RF frequencies to help reduce mutual interference. - Page 12 Figure 12B shows protection of a microwave link over uneven ground. Figure 12C shows the Model 380 used as gap filler for irregular terrain. Figure 12D shows the possibility of utilizing multiple sensors to provide large area coverage.
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Page 13: Mounting
(1.2m) above ground. See Figure 13.The concrete footer can vary depending on frost line conditions. Model 380 may also be mounted to a rigid wall or on the side of a building using the holes in the mounting plate. It can also be mounted to unistrut using the holes in the mounting plate. -
Page 14: Power Wiring
Gnd. Lug & Wire 4" O.D. Galvanized Pipe 1/2" x 18" Flexible 48" Conduit 36" Nominal Ground Lug #6 AWG GROUND BUS 24" Deep x 18" Concrete Grounding Rod to 24" Square per Local Typical Electrical Code Tamper, Alarm and Power Lines Figure 13 POWER WIRING_____________________________________________________________ Any regulated "12 VDC"... -
Page 15: Connections
Southwest Microwave Model BX15. Model PS40 1.6 Amp Power Supply with Model BA30 6.5 AH battery will power up to six Model 380 Transceivers (with proper wiring per Figure 15). Model PS40 may be mounted either indoors or outdoors in a weatherproof enclosure such as Southwest Microwave Model BX20 or BX35. -
Page 16: Alignment And Test
7) A test function is included in Model 380. When gated on by a +5 to +12 VDC command (at the terminal block), the test function provides a phantom signal into the transmitter and receiver circuits to generate an alarm and test the entire 380 detection system. -
Page 17: Preventative Maintenance
10-12 VDC (Alarm) PREVENTATIVE MAINTENANCE_______________________________________________ Model 380 requires no calibration other than alignment, RCO and sensitivity adjustment during installation. To maintain a trouble free system, the following is recommended. Wax the radomes every 3 to 6 months. (At maximum security installations, where detection of prone crawling... -
Page 18: Optional Equipment
Model MB65 Mounting Bracket is a heavy duty, position locking non-corrosive mounting bracket. It provides means of locking the angular direction setting of Model 380 Transceiver. Model MB65 mounts only to a 4" (10.2cm) O.D. post. LIMITED WARRANTY__________________________________________________________ Southwest Microwave, Inc. -
Page 19: Replacement Parts
Southwest Microwave, Inc., reserves the right to make changes in design on any of its products without incurring any obligation to make the same changes on units previously purchased. This warranty is the extent of the obligations or liabilities assumed by Southwest Microwave, Inc. with respect to its products and is in lieu of all other warranties, express or implied, including, but not limited to, any warranty or merchantability or fitness.
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