Figure 2.28 Block Diagram Of 4Swm Module - Samsung OFFICESERV 7100 Service Manual

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Ethernet port provided by the CPU of MP10 or MP11 board is connected to the LAN port
of the front panel of MP10/11. If 4SWM is mounted, the CPU Ethernet port is connected to
the Ethernet port of 4SWM, and another Ethernet port of 4SWM is connected to the LAN
port of the front panel. When 4SWM is mounted, automatically connected through relay in
MP10/11.
2.5.14.2 Board Block Diagram
The block diagram of the 4SWM module is as follows:
PoE Channel 1(Pos/Neg)
PoE Channel 2(Pos/Neg)
PoE Channel 3(Pos/Neg)
PoE Channel 4(Pos/Neg)
Port 1
4 Ports
Port 2
Magnetic
Port 3
Transformer
Modules
Port 4
(H1164NLT)
2.5.14.3 Main Features
Switch Controller (BCM5325E) Block
BCM5325E used as the switch controller of 4SWM is 6-port 10/100Base-T/TX switch
manufactured by Broadcom. BCM5325E includes Media Access Controller(MAC) that supports
six full duplex, and five 10 Base-T/100Base-TX fast Ethernet transceivers. In addition, it provides
one 10/100 MII interface and can be configured as the sixth port and connected to Reversed MII
of the processor. In 4SWM, it is used as the sixth port. If 4SWM is mounted, it switches with
LAN of MP10/11. Packet buffer memory and one address resolution engine are mounted
and non-blocking switch controller and Management Information Base(MIB) statistics
register are also included. 4SWM can be conveniently configured, and the L2 switch can be
also properly configured when the management function is used.
Main features are described as follows:
2-48
4 Channel
PoE
Manager
(PD64004)
25 M
3.3 V
Clock
RD+ /-(1:4)
10/100 Switch
(BCM 5325E)
RD+ /-(1:4)
To Primary Connector

Figure 2.28 Block Diagram of 4SWM Module

25 M Clock
Clock
Distributer
1.8 V
25 M
3.3 V 3.3 V
Clock
MII
PHY
(BCM5241)
RD+ /-(5)
RD+ /-(5)
To Secondary Connector
© SAMSUNG Electronics Co., Ltd.
Clock
(25MHz OSC)
-54 V
DC-DC Cov.
3.3 V
(MIC39151-1.
8BU)
SMP(SCK, CS, DI, DO)
LAN In from
1 Port
M82510
Magnetic
Transformer
(H1102T)
1 Port
LAN Out
Magnetic
Transformer
(H1102T)