IDU
TRIBUTARY
2/4/8 x 2 Mbit/s(75 OHM UNBAL./120 OHM BAL.)
PC channelRS-232CD channel (*)
64 kbit/s RS-485V channel
128 kbit/s RS-485EOW Expansion (*)
4-wires + E&M, 600 Ohm BAL.Q channel (*)X.21/Ethernet
10BASE2
V BAT
External lines for alarm,status and command
User channel64 kbit/s V.11
ODU
Antenna
(*) optional
IF RX 70 MHz,FSK 5.5 MHz
IF TX 320 MHz,FSK 6.5 MHz, VDC
POE(*)
(*)
(*)
a
b
Fig. 1 (TR3647E1A02 SRA L System Interfaces, 4)
Main and Redundant –48Vdc
75/120 ohm
IDU
TRIBUTARY2/4/8 x 2 Mbit/s
(75 OHM UNBAL./120 OHM BAL.)
PC channelRS-232CD channel (*)
64 kbit/s RS-485V channel
128 kbit/s RS-485EOW Expansion (*)
4-wires + E&M, 600 Ohm BAL.Q channel (*)X.21/Ethernet
10BASE2
V BAT
External lines for alarm,status and command
User channel64 kbit/s V.11
ODU
Antenna
(*) optional
IF RX 70 MHz,FSK 5.5 MHz
IF TX 320 MHz,FSK 6.5 MHz, VDC
POE(*)
(*)
(*)
c
Fig. 2 (TR3647E1A02 SRA L System Interfaces, 6)
LCT
19.2 Kb/s
Local supervisory functions
IDU
TRIBUTARY2/4/8 x 2 Mbit/s
(75 OHM UNBAL./120 OHM BAL.)
PC channelRS-232CD channel (*)
64 kbit/s RS-485V channel
128 kbit/s RS-485EOW Expansion (*)
4-wires + E&M, 600 Ohm BAL.Q channel (*)X.21/Ethernet
10BASE2
V BAT
External lines for alarm,status and command
User channel64 kbit/s V.11
ODU
Antenna
(*) optional
IF RX 70 MHz,FSK 5.5 MHz
IF TX 320 MHz,FSK 6.5 MHz, VDC
POE(*)
(*)
(*)
d
Fig. 3 (TR3647E1A02 SRA L System Interfaces, 8)
Máx 32 controllers
Dasy chain
Terminated by 120 ohm
IDU
TRIBUTARY
2/4/8 x 2 Mbit/s(75 OHM UNBAL./120 OHM BAL.)
PC channelRS-232CD channel (*)
64 kbit/s RS-485V channel
128 kbit/s RS-485EOW Expansion (*)
4-wires + E&M, 600 Ohm BAL.Q channel (*)X.21/Ethernet
10BASE2
V BAT
External lines for alarm,status and command
User channel64 kbit/s V.11
ODU
Antenna
(*) optional
IF RX 70 MHz,FSK 5.5 MHz
IF TX 320 MHz,FSK 6.5 MHz, VDC
POE(*)
(*)
(*)
f
e
Fig. 4 (TR3647E1A02 SRA L System Interfaces, 10)
GNE only one gateway is necessary
Depends in OMC connection
1 x 64 Kb/s
with Q-Adapter
2 x 64 Kb/s
Distribuitor
ODU
IDU
Q(10BASE2) Q-ADAPTER D
SRA L SRA L SRA L SRA L
IDU
D1 DISTRIBUTOR D2
ODU
IDU
D1 DISTRIBUTOR D2
ODU
IDU
ODU
R/T
64 kbit/sDATA CHANNEL
64 kbit/sDATA CHANNEL
R/T
PDH/SDHRADIO SYSTEM
OROPTICAL FIBER
PDH/SDHRADIO SYSTEM
OROPTICAL FIBER
Fig. 5 D/D1-D2 data channel interface - 64 kbit/s: connections (TR3647E1A02 SRA L System Interfaces, 11)
IDU
TRIBUTARY2/4/8 x 2 Mbit/s
(75 OHM UNBAL./120 OHM BAL.)
PC channelRS-232CD channel (*)
64 kbit/s RS-485V channel
128 kbit/s RS-485EOW Expansion (*)
4-wires + E&M, 600 Ohm BAL.Q channel (*)X.21/Ethernet
10BASE2
V BAT
External lines for alarm,status and command
User channel64 kbit/s V.11
ODU
Antenna
(*) optional
IF RX 70 MHz,FSK 5.5 MHz
IF TX 320 MHz,FSK 6.5 MHz, VDC
POE(*)
(*)
(*)
g
h
Fig. 8 (TR3647E1A02 SRA L System Interfaces, 16)
Audio Channel EXP
Dasy chain interconnection in the same station
Fig. 9 EOW unit front view (TR3647E1A02 SRA L System Interfaces, 19)
Dasy chain
Only one number and handset by each station, conectivity of EOW for all the network
selector
All the SRAL even in the same station must have the EOW unit
Fig. 10 Principle diagram of the service telephone channel (TR3647E1A02 SRA L System Interfaces, 20)
RTM1
RTM2
IDU
TRIBUTARY2/4/8 x 2 Mbit/s
(75 OHM UNBAL./120 OHM BAL.)
PC channelRS-232CD channel (*)
64 kbit/s RS-485V channel
128 kbit/s RS-485EOW Expansion (*)
4-wires + E&M, 600 Ohm BAL.Q channel (*)X.21/Ethernet
10BASE2
V BAT
External lines for alarm,status and command
User channel64 kbit/s V.11
ODU
Antenna
(*) optional
IF RX 70 MHz,FSK 5.5 MHz
IF TX 320 MHz,FSK 6.5 MHz, VDC
POE(*)
(*)
(*)
j
Fig. 11 (TR3647E1A02 SRA L System Interfaces, 22)
Configuration SW
Contradireccional DTE external
Co-direccional
DCE external
IDU
TRIBUTARY2/4/8 x 2 Mbit/s
(75 OHM UNBAL./120 OHM BAL.)
PC channelRS-232CD channel (*)
64 kbit/s RS-485V channel
128 kbit/s RS-485EOW Expansion (*)
4-wires + E&M, 600 Ohm BAL.Q channel (*)X.21/Ethernet
10BASE2
V BAT
External lines for alarm,status and command
User channel64 kbit/s V.11
ODU
Antenna
(*) optional
IF RX 70 MHz,FSK 5.5 MHz
IF TX 320 MHz,FSK 6.5 MHz, VDC
POE(*)
(*)
(*)
k
Fig. 12 (TR3647E1A02 SRA L System Interfaces, 24)
Auxiliary supply voltage
4 Imput/Output Station Alarms
6 Output Equipment Alarms
4 Output command lines relevant to the local controller
ALARM UNIT EXTERNAL CONNECTIONS
Station
Alarms
IDU
TRIBUTARY2/4/8 x 2 Mbit/s
(75 OHM UNBAL./120 OHM BAL.)
PC channelRS-232CD channel (*)
64 kbit/s RS-485V channel
128 kbit/s RS-485EOW Expansion (*)
4-wires + E&M, 600 Ohm BAL.Q channel (*)X.21/Ethernet
10BASE2
V BAT
External lines for alarm,status and command
User channel64 kbit/s V.11
ODU
Antenna
(*) optional
IF RX 70 MHz,FSK 5.5 MHz
IF TX 320 MHz,FSK 6.5 MHz, VDC
POE(*)
(*)
(*)
L
Fig. 13 (TR3647E1A02 SRA L System Interfaces, 26)
IDU
TRIBUTARY2/4/8 x 2 Mbit/s(75 OHM UNBAL120 OHM BAL.)
PC channelRS-232CD channel (*)
64 kbit/s RS-485V channel
128 kbit/s RS-485EOW Expansion (*)
4-wires + E&M, 600 Ohm BAL.Q channel (*)X.21/Ethernet
10BASE2
V BAT
External lines for alarm,status and command
User channel64 kbit/s V.11
ODU
Antenna
(*) optional
IF RX 70 MHz,FSK 5.5 MHz
IF TX 320 MHz,FSK 6.5 MHz, VDC
POE(*)
(*)
(*)
m
Fig. 14 (TR3647E1A02 SRA L System Interfaces, 28)
3 4 5 6 7 8
9
1
2
Fig. 15 (TR3647E1A02 SRA L System Interfaces, 32)
Prx Level Indication
EOW
Exercises
1. Can you explain the main function of the Alarm Unit?
2. Which is the capacaty, protocol and the function for the following interfaces: User Channel, D channel and V Channel?
3. For which propose we use Q- Adapter
