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10

Putting the ACA 1 into operation

Connecting devices to the ACA 1 

Connecting

the antennas

The ACA 1 provides two channels A and B. You can connect up
to 4 antennas per channel (diversity). Each input can supply up
to 250 mA for an active antenna.

Active Antennas

Connect the antennas to one of the BNC sockets 

IN A1

IN A4

 

+

 

or 

IN B1

IN B4

!

Set  the  switch

!

  to  the  correct  mode  for  each  connected

antenna:

The  supply  current  for  active  antennas  is  limited  to
250 mA per input. 

/

0

(

)

*

Switch

!

 

Meaning

DC & RF ON

For 

active

 antennas

The RF path from the respecting input to 
the corresponding output is ON.
The 12V DC supply to the corresponding 
input is ON

OFF

No antenna connected

RF ON

For 

passive 

antennas

The RF path from the respecting input to 
the corresponding output is ON.
The 12V DC supply to the corresponding 
input is OFF

Summary of Contents for ACA 1

Page 1: ...ACA 1 Active Antenna Combiner Instruction manual...

Page 2: ...roduct Features 5 Operating controls 6 Front side 6 Rear side 7 Putting the ACA 1 into operation 8 Preparing the ACA 1 for use 8 Using the ACA 1 12 Example 1 Studio Complex 14 Example 2 Large Church 1...

Page 3: ...not expose it to rain or mois ture Do not place objects filled with liquids such as vases or coffee cups on the device Only use the NT 3 1 table top power supply see Accesso ries on page 18 Do not bl...

Page 4: ...ion manual espe cially 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 usin...

Page 5: ...oor sporting events and reality TV shows With the ACA 1 2 channel active antenna combiner the received signals of up to four active or passive antennas per channel can be combined for one receiver or...

Page 6: ...e DC Supplied on antenna each input for head amplifiers or active antennas e g AB 3 AB 3700 A12 AD AB 1036 Switchable RF RF from each of the eight antenna inputs is switchable to isolate unused antenn...

Page 7: ...al switches and LEDs according to the rear side antenna inputs IN A1 IN A4 and IN B1 IN B4 RF ON OFF DC RF ON switch to select active passive antennas DC ON DC LIMIT Status LED GRN green indicates DC...

Page 8: ...na or booster 1 BNC socket OUT A OUT B per channel for connecting a receiver or receiver system DC IN socket for connecting the NT 3 1 table top power supply 0 CAUTION Connecting transmitters to the c...

Page 9: ...of devices which are not mounted into a rack The ambient temperature within the rack must not exceed the temperature limit specified in the specifications Ensure sufficient ventilation if necessary p...

Page 10: ...l GA 3 rack adapter to the ACA 1 using the previously removed recessed head screws Secure the blanking plate 2 to one of the rack mount ears 1 using two recessed head screws M 6x10 Insert the two blan...

Page 11: ...s IN A1 IN A4 or IN B1 IN B4 Set the switch to the correct mode for each connected antenna The supply current for active antennas is limited to 250 mA per input 0 Switch Meaning DC RF ON For active an...

Page 12: ...ACA 1 to the mains For powering the ACA 1 and the connected RF boosters or active antennas you require the NT 3 1 table top power supply see Accessories on page 18 Insert the DC connector of the NT 3...

Page 13: ...h from the respectikZ input to the corresponding output is enabled DC ON lights up GREEN Switch is set to DC RF ON The 12V DC supply to the corresponding input is ON and the current consumption is low...

Page 14: ...ters which are receiving their power from the ACA 1 are switched off Disconnecting the ACA 1 from the mains The STANDBY button does not disconnect the ACA 1 from the mains To disconnect the ACA 1 from...

Page 15: ...14 Using the ACA 1 Unplug the NT 3 1 table top power supply from the wall socket The ACA 1 is switched off...

Page 16: ...ect each antenna to a centrally loca ted ACA 1 combiner which feeds the radio signal from all of the antennas to the radio receivers Boosters may be required on long cable runs The ACA 1 provides 12V...

Page 17: ...n by conducting a site survey 50 ohm coaxial cables connect each antenna to a centrally located ACA 1 combiner which feeds the radio signal from all of the antennas to the radio receivers Boosters may...

Page 18: ...e page 12 Only use a slightly damp cloth to clean the device CAUTION Liquids can damage the electronics of the device Liquids entering the housing of the device can cause a short circuit and damage th...

Page 19: ...blems Check the connections of the NT 3 table top power supply and or check the BNC sockets IN A1 to IN A4 and or IN B1 to IN B4 Disturbed RF reception Antennas are not connected correctly Check the a...

Page 20: ...integrated AB 3700 booster 470 866 MHz 002243 GZA 1036 TV Ground plane antenna 470 800MHz adjustable Boosters 502196 AB 3700 Broadband antenna booster 470 866 MHz 502567 AB 3 A Antenna booster 42 MHz...

Page 21: ...5 GZL 1019 A5 Co axial cable 5 m BNC BNC 002326 GZL 1019 A10 Co axial cable 10 m BNC BNC 505455 GZL 9000 A5 Antenna Cable 5 m N Connectors 505456 GZL 9000 A10 Antenna Cable 10 m N Connectors 505457 GZ...

Page 22: ...pply Total current consumption max 2 5 A Supply voltage for antennas or boosters with DC ON at IN A1 to IN A4 and at IN B1 to IN B4 13 6 V DC 250 mA overload protected Output IP3 37 dBm Output 1dB com...

Page 23: ...r In compliance with the following requirements RoHS Directive 2002 95 EU WEEE Directive 2002 96 EU Please dispose of the ACA 1 at the end of its operational lifetime by taking it to your local collec...

Page 24: ...Publ 15 Sennheiser UK Ltd Pacific House Third Avenue Globe Park Marlow Buckinghamshire SL7 1EY Great Britain www sennheiser co uk...

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