Pico Macom EAS12B Manuale utente
PICO MACOM, INC.
EAS12B
Adds FCC compliant emergency alert
capability to any CATV system at baseband,
including those without accessible I.F. loops
Proprietary baseband switching methodolo-
gy eliminates the signal distortion and loss
associated with traditional I.F. switching
BTSC stereo compatibility provides pass-
through for stereo signals
Reconfigurable for 23-channel audio-only or
video-only emergency alert applications
Two or more units can be cascaded to pro-
vide emergency override audio-video alert
on 24 or more cable channels.
Compatible with all modulator types and
brands, with or without external I.F. loops
Compatible with all scrambling modes
(Baseband and I.F.)
Internal switching via high-speed field-
effect transistors (FET’s) for instantaneous
video signal transfer without cost and
inconvenience of external switching devices
High isolation between FET’s eliminates
channel crosstalk and other intrusions into
the downstream path, thereby maintaining
excellent picture quality
Back panel mounted input and output “F”
ports provide easy loop through connec-
tions using standard “F” type coaxial
jumpers
Back panel EAS enable-disable contact pro-
vides convenient local or remote activation
U. L. approved switching power supply pro-
vides flexibility for use in international
power system environments
The Pico Macom EAS12B is the most user friendly 12 channel professional re-
broadcast grade audio-video emergency alert system on the market. It enables
users, via a local or remote contact closure to simultaneously override up to 12
video and audio channels (monaural or BTSC stereo) with one video/audio over-
ride source. Alternately, the unit can be daisy-chained to override 23 channels
with an audio or video-only override source. The EAS12B interrupts the primary
signals at baseband level instead of breaking into the I.F. loop, eliminating the
signal distortion and loss associated with traditional I.F. switching and providing
compatibility with all I.F. loop and non I.F. loop modulators. The EAS12B
employs CMOS field effect transistor (FET) switching for instantaneous transfer
to and from the override source while maintaining very high isolation between
input and output ports.Two or more units can be cascaded to provide emer-
gency override audio-video alert on 24 or more cable channels. All connections
are via industry standard “F” type coaxial jumpers. Pico Macom backs up this
product with its industry leading 5-year limited warranty.
EAS12B
12-Channel Emergency Alert System
12-Channel Emergency Alert System
www.picomacom.com
Headend & Electronics
355 Parkside Drive San Fernando, CA 91340
Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: 818-493-4433 A-67
Rev. 5/03
EAS12B
Product Specifications
12-Channel Emergency Alert System
www.picomacom.com
A-68
Rev. 05/03 355 Parkside Drive San Fernando, CA 91340
Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: 818-493-4433
Specifications Subject to Change © Copyright 2003 Pico Macom, Inc.
12-Channel Emergency Alert System
EAS12B
Front View
Rear View
Power Input: Input 90 VAC 260 VAC
Output 20 VAC, 500 mA
Operating Temperature: -10° C to 50° C
Dimensions: 19˝(L) x 9˝(D) x 31/2˝(H)
Weight: 3.5 lbs.
Connectors: Video/Audio “F” Type
Return Loss >25 dB
Switching Speed: <1ms
Switching Voltage: TTL Level, 0, 5 VDC,
2 pin terminal strip
Frequency: DC to 200 MHz
Flatness: ±0.1 dB
Insertion Loss: 0 dB
Impedance: 75 Ohms
Return Loss: > 40 dB
>-90 dB@10 MHz
>-60 dB@100 MHz
Differential Gain: 0.1 %
Differential Phase: 0.1º
Chroma Luma Delay: FCC Compliant
Isolation: >-90 [email protected] MHz
>-87 dB@10 MHz
>-60 dB@100 MHz
Frequency: 15 Hz to 130 kHz
Insertion Loss: 0 dB
Impedance: 600 Ohms
Video
General
Audio
Ordering Information
EAS-12B
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