User Manual

User Reference and Installation Manual 2-11
MDS 5800 II
External
Antenna
Internal/
Horizontal
Antenna
Transfer
Switch
Duplexer
Diversity
Switch
Transmitter
Up-Converter
Receiver
Down-Converter
350
MHz
140
MHz
DC/DC
Converters
-48Vdc
+10Vdc
+5Vdc
+3Vdc
-5Vdc
Commlink
& Processor
5/10
MHz
ODU
RSL
(Received
Signal Level)
Voltage
Vertical
Antenna
TNC
N-type
BNC
5.3/
5.8
GHz
FRAMER
STM-1/OC3
DS-3/ES/
STS-1
2xSTM-1/
OC3
4xDS3/ES/
STS1
Future
64 kbps
Voice
16 T1/E1
User 2x
100Base-Tx
Switch
MODEM/
FEC ASIC
MODEM/
FEC ASIC
4x44.736/34.368/
51.84 Mbps
2x 155.52 Mbps
4x44.736/34.368/
51.84 Mbps
155.52 Mbps
2x 100 Mbps
16x 1.544/2.048
Mbps
Digital
IF
Quad
Mux
SNMP 2x
100Base-Tx
Switch
CPU
East/Primary Modem
West/Secondary Modem
Digital
IF
Quad
Mux
2x 100 Mbps
IDU
CONTROLLER
Optional I/O Cards
(Small Slot)
Standard I/O Cards
Optional I/O Cards
(Large Slot)
Primary Power
Supply
Secondary Power
Supply
Serial
RCH Serial
Modem Control
Telemetry
IDU
-48Vdc
-48Vdc
Quad
Mux
-48Vdc
-48Vdc
Multiplexed
IF
Multiplexed
IF
Figure 2-4. MDS 5800 II System Block Diagram
The SDIDU
TM
interfaces with the ODU to receive and provide modulated transmit and receive
waveforms. The SDIDU
TM
interfaces provide Fast Ethernet 100Base-T (MDS 5800 II-100)
connections to the network. Contact factory for availability of SONET OC-3 (MDS 5800 II-155)
connections. In addition, one (SONET model) or two (Ethernet model) T1 channels are provided
for PBX extension. SNMP is provided on 10/100BaseT ports.