Tait TB9400 User Manual

72 Installation TB9400/TN9275 Installation and Operation
© Tait International Limited May 2023
Non simulcast sites can use an external timing reference (as per simulcast
operation) or exchange timing signals between transceivers (internal
timing)
Channel Group
Multicast
Channel group non-simulcast operation requires the following
synchronization inputs:
Channel Group
Simulcast
Simulcast operation requires frequency reference input, 1PPS and NTP
derived from GNSS.
4.5.3 Equipment Required
It is beyond the scope of this manual to list everything required. However,
the following tools and equipment are specifically required for installing
the base station:
Timing Type
Frequency
Reference Input
1PPS NTP
External Required Required Required
a
a. External timing requirements for Phase 2 non-simulcast operation are
equivalent to simulcast.
Internal - control
channel
Not required Output from control
channel
Not required
b
b. Even though NTP is not required for transmission synchronization, it is
recommended for aligning log timestamps.
Internal - traffic
channel
Not required Input from control
channel
Not required
c
c. All transceivers at the site must use the same timing source; either an ex-
ternal timing unit or one that is internally derived between channels at the
site.
Channel Type
Frequency
Reference Input
1PPS NTP
DMR conventional
voted
Not required Required Required
a
a. 1PPS and NTP must be GNSS sourced (coherent).
Simulcast Channel Type
Frequency
Reference Input
1PPS NTP
AS-IP analog
a
a. Applies to TB7300 / TB9400 / TN9275 gateway.
Required Required Required
P25 Ph1 / Ph2 / conventional /
trunked
1
Required Required Required
DMR conventional / trunked Required Required Required

Tait TB9400 Specifications

General

Brand	Tait
Model	TB9400
Category	Accessories
Language	English