DS-6 Intercom System Product Catalogue - Neumann Elektronik

Accessories Outdoor Call Stations
Auxiliary Amplifier EX 25 W
ms NEUMANN ELEKTRONIK GmbH
A call station in combination with an auxiliary amplifier and a loudspeaker can use the auxiliary loudspeaker as a PA
speaker for incoming calls. Only the initial call to the call station is transmitted over the auxiliary loudspeaker. If the call
station answers, its internal speaker is automatically used for the rest of the call. After approx. 20 seconds pause in the
conversation, the call station returns to using the PA loudspeaker.
25-W-Auxiliary amplifier 1)
Art.-No. 1 570 3
Facilities
• Installable solder-free, on site
• Temperature-controlled power limiter
• PA operation with separate auxiliary loudspeaker
• Auxiliary loudspeaker can be switched off
• Installable in the following call stations:
WFA: Art.-No. 1 590 5
WFD: Art.-No. 1 595 0 and 1 681 6
WFD-EX: Art.-No. 1 563 5, 1 564 6, 1 565 7
And 1 521 9
WFA-EX: Art.-No. 1 575 8, 1 576 9 and 1 577 0
• Aready included in the following call Stations:
WFD-EX: Art.-No. 1 560 2, 1 561 3 und 1 562 4
WFA-EX: Art.-No. 1 578 1, 1 579 2 und 1 580 4
Art.-No. 1 570 3
Mounting 25 W auxiliary amplifier
Electrical data
10 1570 4
Operating voltage range 48…60 V DC
max. quiescent current
max. operating current
10 mA
Output power 25 W at 400 Ω
Output voltage 100 V (can be changed to 50 V)
min. input voltage for nominal output 1 V
Input impedance 20 kΩ (at 1 kHz)
Frequency range (measured at V0=25 V AC) 200 Hz to 10 kHz (-3 to ±1 dB)
Distortion factor (measured at V0=70 V AC)
1)
we recommend the heat conducting plate Art.-No. 99 8211 003 3 for mounting.
≤5 %
© 2012 ms NEUMANN ELEKTRONIK GMBH All rights reserved 959 7015 126 5 Issue 03 Subject to technical modifications 30
Lahnstr. 30, 45478 Mülheim a. d. Ruhr, Phone +49 (0)208-5995-0, Fax +49 (0)208-5995-235, info@neumann-elektronik.com, www.neumann-elektronik.com