C
Copyright Technolog Ltd. 2017. All rights reserved.
Information contained in this document subject to
change without prior notice.
Sheet 13 of 41
Technolog Limited,
Ravenstor Road,
Wirksworth,
DE4 4FY,
United Kingdom
T: +44 (0) 1629 823611
E: technolog@technolog.com
www.technolog.com
DMR No.: 7311
2137PM9001 Rev. A
Installation: Standard connections - Optional external antenna
An 'SMA' jack socket is optionally provided for the connection of an external cellular mobile telecommunications network
antenna. Where this socket is fitted the Cello 6S does not feature an internal antenna therefore in order to facility remote
communications an external antenna must be fitted.
Only an external antenna specifically approved by Technolog for use with Cello 6S, and taking into account the intended
application / site, should be connected. Contact Technolog for further infomation and details of antennas that are already
approved for use with Cello 6S.
Use of any un-approved external antenna with Cello 6S could lead to a potentially dangerous situation and as such will
invalidate all applicable warranties.
The external antenna should be located as high up as possible and, where practical, away from metal structures
although in order to determine optimal Cello 6S performance a signal strength test should be performed (as detailed in
the "Installation: Commissioning" section of this document) with the antenna being moved around until the strongest
signal strength is obtained although be aware that it may not be physically possible to locate the antenna in the perfect
location.
Refer also to the "Considerations: Installation" and "Considerations: Environment" sections of this document.
RF exposure considerations.
For further details please refer to the Technolog Declaration of Conformity ('D of C') document 2137DC9001 associated
with Cello 6S.
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