Westell Inc. CSI610-S9 ユーザーズマニュアル
Lightning Danger
Do not install or make adjustments to this unit during an electrical storm.
No User Serviceable Parts Inside
HAZARDOUS VOLTAGES ARE PRESENT WHEN THE COVER IS REMOVED. Opening the chassis will void your
warranty. If you suspect a malfunction with this product, call your dealer or the Cellular Specialties Support Line at
(603) 626-6677.
warranty. If you suspect a malfunction with this product, call your dealer or the Cellular Specialties Support Line at
(603) 626-6677.
DISCLAIMER: All information and statements contained herein are accurate to the best of the knowledge of Cellular
Specialties, Inc. (CSI), but Cellular Specialties makes no warranty with respect there to, including without limitation any results
which may be obtained from the products described herein or the infringement by such products of any proprietary rights of any
persons. Use or application of such information or statements is at the users sole risk, without any liability on the part of Cellular
Specialties, Inc. Nothing herein shall be construed as license or of recommendation for use, which infringes upon any
proprietary rights of any person. Product material and specifications are subject to change without notice. Specialties’ standard
terms of sale and the specific terms of any particular sale.
Product Description
Cellular Specialties, Inc. (CSI) developed the LCD Model Bi-Directional Amplifier (BDA) for use in enclosed structures where
sufficient signal from local cell sites to operate cell phones was unavailable within the building. It is necessary that sufficient
signal be available on the roof of the structure. The BDA is connected to an external antenna, usually on the roof, and to one or
more internal antennas placed strategically throughout the area where phone service is desired.
The external antenna is usually a directional type such as a “Yagi”. Internal antennas are usually omni directional, although
various other types may be used for certain installations. The BDA amplifies both the “uplink” (phone to tower) and “downlink”
(tower to phone) signals thus facilitating communications to and from the local cell site.
There are seven amplification stages on the downlink and seven on the uplink for a total of +80dB nominal gain for each link.
Gain can be set using the LCD display and select/up/down switches. There are also LED indicators on the top cover for power
overload and gain reduction to prevent oscillation.
LED Indicators
Specialties, Inc. (CSI), but Cellular Specialties makes no warranty with respect there to, including without limitation any results
which may be obtained from the products described herein or the infringement by such products of any proprietary rights of any
persons. Use or application of such information or statements is at the users sole risk, without any liability on the part of Cellular
Specialties, Inc. Nothing herein shall be construed as license or of recommendation for use, which infringes upon any
proprietary rights of any person. Product material and specifications are subject to change without notice. Specialties’ standard
terms of sale and the specific terms of any particular sale.
Product Description
Cellular Specialties, Inc. (CSI) developed the LCD Model Bi-Directional Amplifier (BDA) for use in enclosed structures where
sufficient signal from local cell sites to operate cell phones was unavailable within the building. It is necessary that sufficient
signal be available on the roof of the structure. The BDA is connected to an external antenna, usually on the roof, and to one or
more internal antennas placed strategically throughout the area where phone service is desired.
The external antenna is usually a directional type such as a “Yagi”. Internal antennas are usually omni directional, although
various other types may be used for certain installations. The BDA amplifies both the “uplink” (phone to tower) and “downlink”
(tower to phone) signals thus facilitating communications to and from the local cell site.
There are seven amplification stages on the downlink and seven on the uplink for a total of +80dB nominal gain for each link.
Gain can be set using the LCD display and select/up/down switches. There are also LED indicators on the top cover for power
overload and gain reduction to prevent oscillation.
LED Indicators
Warning: The unit has sensed instability due to insufficient isolation between the inside antenna and the
outside antenna, and has reduced the gain of the amplifier. This is done to prevent oscillation, which can
interfere with the handsets in the covered area and/or the wireless service provider’s base station.
outside antenna, and has reduced the gain of the amplifier. This is done to prevent oscillation, which can
interfere with the handsets in the covered area and/or the wireless service provider’s base station.
Fault: The gain of the unit has been reduced to a minimum in order (Red) to prevent very strong input
signals from overloading the amplifier. The amplifier will attempt to recover from this condition, initially at
fifteen-second intervals and then at four-minute intervals.
signals from overloading the amplifier. The amplifier will attempt to recover from this condition, initially at
fifteen-second intervals and then at four-minute intervals.
An automatic amplifier safety shutdown circuit is also incorporated that will disable the transmitters should the uplink or downlink
overloads be reached to prevent excessive intermodulation and oscillation. The amplifier will periodically attempt to recover
from this condition.
The BDA is also equipped with an interface connector (RJ-15) designed for use with an optional remote monitor. A second
Connector (RJ-11) is used for remote monitoring and shutdown. The RJ-11 pin-out is listed below.
Pin-Out Chart
overloads be reached to prevent excessive intermodulation and oscillation. The amplifier will periodically attempt to recover
from this condition.
The BDA is also equipped with an interface connector (RJ-15) designed for use with an optional remote monitor. A second
Connector (RJ-11) is used for remote monitoring and shutdown. The RJ-11 pin-out is listed below.
Pin-Out Chart
Pin Description
1
Alarm Relay - Common
2
N/C
3
Shutdown (Input TTL)
4
Uplink Power
5
Alarm Relay – Active Open
6 N/C