14
LITESYNC MANUAL
VER. 2 REV. 0
(*) These are just some of the devices that can work with LiteSync. The list is very long, if you want to know if your equipment can connect to LiteSync, do not
hesitate to contact us.
Pay attention to the direction of insertion of the GigaKeys in the slots: the correct position is with the screen printing facing
upwards.
Synchronization
Many telecommunication networks require synchronization precision for their correct operation and, therefore, avoid self-
interference and reduce noise generated by the network. In this way, frequencies can also be reused and spectrally efficient.
This is possible to achieve if co-located devices are synchronized.
To synchronize the equipment, you must have a standard signal that serves as a reference to accurately determine the
corresponding data send and receive slots. This signal is known as a sync pulse and it will allow all synchronized devices to
send and receive data in the same period of time: uplink (sending data) and downlink (receiving data) so that when one
receives information, none of the others are sending.
The reference signal to generate the synchronization pulse, also known as "1PPS" or "pulse per second", can be obtained in
different ways:
Through the external GPS antenna
Through the LiteSync “Sync Input” port, connecting:
o
“Sync output” port of GigaSync
o
Cambium Networks uGPS
o
Cambium Networks cnPulse
o
Cambium Networks CMM5
With this sync pulse, the LiteSync can perfectly replicate the Cambium Networks sync mode as described in the following
table:
External antenna
Sync Input
Method of synchronization
GPSA
(*)
GigaSync
uGPS
cnPulse
CMM5
Cambium Sync
(§)
Table 5 - Several ways to obtain Cambium Networks synchronization method
(*) Product sold by 9dot. It must be purchased separately.
(§) It depends on the source of synchronization that provides the pulse.
GPS antenna
The external antenna must be connected to the N-type female connector that is installed on the front of the LiteSync and
requires a good view of the sky. It does not need to be mounted at the highest point of the tower.
Products sold by 9dot
Supplied with every LiteSync, 9dot provides a compatible GPS antenna; also available separately.
9dot can also provide the coaxial cables needed to connect the antenna to the chassis which must be purchased separately.
Below are the details of these products:
Product code (*)
Description
GS-GPSA
Universal GPS antenna with mounitng kit
N2N5LMR
RF Cable 400 N/M - N/M Length. 5mt
N2N10LMR
RF Cable 400 N/M - N/M Length. 10mt
N2N20LMR
RF Cable 400 N/M - N/M Length. 20mt
ACDC-48
Standalone AC / DC CONVERTER 48V 350W power supply. Cables are not included
ACDC-24
Standalone AC / DC CONVERTER 24V 350W power supply. Cables are not included
Table 6 - accessories supplied by 9dot
