Antenna Splitter ASA 1 Instruction manual
Contents Important safety instructions ........................................................ 2 The ASA 1 active antenna splitter ................................................ 4 Delivery includes ............................................................................... 4 Operating elements ......................................................................... 5 Putting the ASA 1 into operation .................................................. 7 Preparing the ASA 1 for use ....................
Important safety instructions Important safety instructions • Read this instruction manual. • Keep this instruction manual. Always include this instruction manual when passing the device on to third parties. • Heed all warnings and follow all instructions. • Clean only with a slightly damp cloth. • Refer all servicing to qualified service personnel.
Important safety instructions Intended use of the device Intended use of the ASA 1 includes: • having read and understood this instruction manual especially the chapter “Important safety instructions” on page 2, • using the device within the operating conditions and limitations described in this instruction manual. “Improper use” means using the ASA 1 other than as described in this instruction manual, or under operating conditions which differ from those described herein.
The ASA 1 active antenna splitter The ASA 1 active antenna splitter The ASA 1 active antenna splitter has been designed to enable routing of UHF antenna signals to several receivers in a multichannel system. Up to four diversity receivers may be supplied with signal by only two antennas. The integral RF amplifiers ensure that the ASA 1 does not introduce any additional UHF signal loss.
Operating elements Operating elements 쐋 On/Off button Operation indicator Cable grip for cable of mains unit DC IN socket for connection of NT 1-1 mains unit BNC socket RF OUT A RF output only for connection of an additional ASA 1 (to create a 1-to-8 diversity splitter) Four BNC sockets A1 to A4 RF outputs of diversity section A for connection of the receivers Each of these RF outputs can power one receiver.
Operating elements Block diagram The below block diagram (also depicted on the base of the device) shows the signal flow in the device.
Putting the ASA 1 into operation Putting the ASA 1 into operation Preparing the ASA 1 for use For table-top use, fix the device feet to the base of the ASA 1. Do not fit the device feet when mounting the ASA 1 into a 19” rack. CAUTION! Risk of staining of surfaces! Some surfaces have been treated with varnish, polish or synthetics which might cause stains when they come into contact with other synthetics.
Putting the ASA 1 into operation Stacking several ASA 1 You can stack the ASA 1 and the receivers on top of each other. CAUTION! .Danger of injury due to toppling stacks! High stacks can easily topple over. 왘 Place the stack on an absolutely flat surface. 왘 Secure the stack against toppling over. 왘 Stack the devices so that the recesses of the stacking elements completely engage with each other. Mounting the ASA 1 into a 19” rack Do not fit the device feet when mounting the ASA 1 into a 19” rack.
Putting the ASA 1 into operation 왘 When rack mounting, please note that intrinsically harmless leakage currents of the individual mains units may accumulate, thereby exceeding the allowable limit value. As a remedy, ground the rack via an additional ground connection. For rack mounting the ASA 1, you require (see “Accessories and spare parts” on page 17): • the GA 3 19“ rack adapter Rack mounting 왘 Unscrew and remove the two recessed head screws (M4x8) one ASA 1 on one side of the ASA 1.
Putting the ASA 1 into operation If you want to front mount the antennas: 왘 Use the optional AM 2 antenna front mount kit (see “Accessories and spare parts” on page 17). If you want to use remote antennas (see “Accessories and spare parts” on page 17): 왘 Connect the remote antennas. To mount the ASA 1 into the rack: 왘 Slide the ASA 1 with the mounted blanking plate into the 19” rack. 왘 Secure the rack mount “ears” to the 19” rack.
Putting the ASA 1 into operation Rack mounting 왘 Place the two devices (e.g. the ASA 1 and a stationary two devices into receiver) side by side upside-down onto a flat surface: the same 19” slot 왘 Secure the jointing plate to the devices using six recessed head screws (M 3x6). 왘 Secure the rack mount “ears” to the devices as described in the section “Rack mounting one ASA 1” on page 9. To mount the antennas: 왘 Use remote antennas.
Putting the ASA 1 into operation Connecting devices to the ASA 1 and switching the ASA 1 on Connecting the antennas Recommendation for optimum reception To ensure optimum reception even under difficult reception conditions, we recommend using remote antennas. 왘 You can connect the following antenna types to the antenna inputs and : – two A 1031-U or A 2003-UHF passive antennas – or a combination of passive antenna (A 1031-U or A 2003-U) and antenna booster (AB 3).
Putting the ASA 1 into operation Connecting the ASA 1 to the mains For powering the ASA 1, the connected receivers and two optional antenna boosters, you require the NT 1-1 mains unit (see “Accessories and spare parts” on page 17). Using the correct mains unit Only use the NT 1-1 mains unit with the blue DC connector. It is designed for the ASA 1 and ensures safe operation. 왘 Pass the cable of the NT 1-1 mains unit through the cable grip .
Putting the ASA 1 into operation Making an 8-channel system using the ASA 1 There are two ways to link two ASA 1 together to create a 1-to-8 diversity splitter: First possibility: Two antennas supply an 8-channel system ASA 1 ASA 1 AB 3* AB 3* * AB-3 antenna boosters are only required for longer antenna cables (from approx. 10 m).
Putting the ASA 1 into operation Second possibility: Linking two 4-channel systems ASA 1 ASA 1 AB 3* AB 3* * AB-3 antenna boosters are only required for longer antenna cables (from approx. 10 m).
Cleaning the ASA 1 Cleaning the ASA 1 CAUTION! Liquids can damage the electronics of the device! Liquids entering the housing of the device can cause a shortcircuit and damage the electronics. 왘 Keep all liquids away from the device. 왘 Do not use any solvents or cleansing agents. 왘 Before cleaning, disconnect the ASA 1 from the mains (see page 13). 왘 Only use a slightly damp cloth to clean the device. If a problem occurs ...
Accessories and spare parts Accessories and spare parts The following ASA 1 accessories are available from your Sennheiser partner: Cat. No.
Specifications Specifications ASA 1 antenna splitter 2 x 1:4 or 1 x 1:8, active Antenna cable 8 items, 50 cm, BNC Frequency range 500 to 870 MHz at –3 dB Amplification In A – Out A 0 ± 1 dB Amplification In A – Out A1 ... A4 0 ± 1 dB Amplification In B – Out B1 ... B4 0 ± 1 dB Impedance 50 Ω Operating voltage 13.8 V DC (with NT 1-1 mains unit) Total current consumption max. 2.
Manufacturer Declarations Manufacturer Declarations Warranty Sennheiser electronic GmbH & Co. KG gives a warranty of 24 months on this product. Additional warranty conditions can be found on our website at www.sennheiser.com under “Service & Support” and “Terms of Warranty”. CE Declaration of Conformity This device is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. The declaration is available at www.sennheiser.com.
Sennheiser electronic GmbH & Co. KG Am Labor 1, 30900 Wedemark, Germany www.sennheiser.com Printed in Germany Publ.
