TN151 Base Station Interface Connections
MT-4 Radio Systems
TECHNICAL NOTES
Page 2 of 2
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TN151, REV 2-0-0, © Nov 2018
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Proprietary IP Network Interface
A Proprietary IP Network Interface provides a means of remotely controlling one manufacturer’s base stations
by any available WAN or LAN IP connection. This creates a single vendor end-to-end digital RoIP network that
restricts interoperability, system fl exibility and competition. A proprietary IP network remote base station interface
is shown in Figure 3.
Figure 3: Proprietary IP Network Interface
P25 Open Standard Digital Fixed Station Interface (DFSI)
A P25 Open Standard Digital Fixed Station Interface (DFSI) provides a means of remotely controlling base stations
by any available WAN or LAN IP connection. This creates a multi-vendor platform end-to-end digital RoIP network
that supports full interoperability, system fl exibility and competitive pricing between vendors. A DFSI interface fully
supports end-to-end encryption, P25 Digital ID’s and packet data, to or from the console and base station. A DFSI
network remote base station interface is shown in Figure 4.
Figure 4: P25 Open Standard Digital Fixed Station Interface (DFSI)
P25 DFSI advantages over IP-223 / IP-224 Devices
• DFSI is an open standard multi-vendor protocol platform. IP-223/224 is a proprietary protocol.
• DFSI supports a direct digital interface to the Codan Base Station via IP. The IP-223/224 is an IP connection to an analog gateway (IP-223/224) that
connects to the Codan Base Station via analog audio.
• DFSI supports full encrypted P25 voice to the console. An IP-223/224 will not transport encryption over the network.
• DFSI supports Single Block Commands as defi ned in the TIA-102 standards such as Radio Inhibit, Call Alert, Radio Monitor, Radio Check, etc. IP-
223/224 does not.
• IP-223 /224 requires a radio technician to tune analog audio levels in both the Codan Base Station and IP-223/224. DFSI is a direct digital interconnect
with no line level adjustments.
• DFSI supports the ability to upgrade to P25 Packet Data support such as GPS, Key Management, and othercapabilities. IP-223/224 does not.
MOTOROLA CENTRACOM
GOLD ELITE CONSOLE
MOTOROLA PROPRIETARY DIGITAL IP INTERFACE
MOTOROLA QUANTAR
P25 DIGITAL OR
ANALOG SUBSCRIBER
COMMON AIR
INTERFACE
LAN / WAN
2
1
5
4
3
67
8
11
10
9
FUNCTION
12
SYSTEM REGULATOR
MADE IN CANADA
VOL METER
+
-
ON
OFF
SPKR
INT
EXT
EXT
SPKR
ANTENNA A
RX A
TX A
P25 DFSI CONSOLE
CODAN RADIO SYSTEM WITH UIC
LAN / WAN
TRANSMITTER
CNTL
BUS
MIC RF OUT
AD
ANALOG
DIGITAL
NORM
OFF
KEY TX
MICMODE
REF
IN
USB
FREQUENCY (MHz)
MADE IN CANADA
MODEL # CODE
RECEIVER
NORM
SQ. DISABLE
OFF
CNTL
BUS
AD
RF NI
REF
IN
USB
FREQUENCY (MHz)
MADE IN CANADA
MODEL # CODE
P25 DIGITAL FIXED STATION INTERFACE
P25 DIGITAL OR
ANALOG SUBSCRIBER
COMMON AIR
INTERFACE
UIC
RX B
TX B
RX A
TX A
PULL DOWN
TO REMOVE
ETHERNET
ZEROIZE
KEY
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