CHAPTER 1.Overview
OfficeServ 500 Wireless LAN Service Manual/Ed.00
Page 1-14
© SAMSUNG Electronics Co., Ltd.
3.3.5 WBS24 (Combo) Block
The block diagram of WBS24(Combo) and functions for each block are as follows.
Figure 1.3 Block Diagram of WBS24 WBS24 (Combo)
3.4 WBS24
(Basic)
3.4.1 Overview
The WBS24(Basic) is the AP(Access Point) for using the wireless LAN service.
3.4.2 Major
Functions
The major functions of WBS24(Basic) are as follows :
Provides the wireless RF interface that meets IEEE 802.11b, the wireless LAN
standard.
Provides the wired LAN interface that meets IEEE 802.3, the wired LAN
standard.
Provides voice communication through OfficeServ 500
System using a Voice
over WLAN phone.
Provides a wireless data service to data terminals that have the wireless LAN
interface.
Separates the wirelessly received voice and data from each other and transmits
them to OfficeServ 500
System and LAN.(If a voice message(signal) is received,
it is transmitted to OfficeServ 500
System. If a data message(signal) is received,
it is transmitted to LAN.)
Provides the compression and decompression of PCM voice data.
Magnetic
Embedded
CPU
(NetARM
Core *2)
PCMCIA
Power
Controller
(3.3V/5V Auto
Switch)
LED
Control
UART
Controller
SRAM
64K word
Reset Control
WLAN NIC
CARD
(802.11b)
MAC/BB/Ext.
Ant.
External
Antenna
- Diversity
- Gain : 2dBi
- Dipole
Flash ROM
4M byte
SDRAM
16M byte
Voltage
Regular
Input : 3.3V
Output : 1.8V
SIO
RS232C
DC/DC Power
(Remote)
-48/+5, +3.3
DASL
DSP
- Audio Codec
- Echo Cancellation
RJ-45
RJ-45
RJ-45
Ethernet
10/100T
UART
DASL_Int.
Reset
Ethernet I/F
25MHz Xtal
SDRAM
BUS
32bits
EPB BUS
8bits
DSP_Int(To Host)
1.8V
3.3V
5.0V
UART
(D_Ch)
PCM I/F
DASL.Int
2048NHz
OSC
20MHz Xtal
Reset
BUS 16bits
HPI 8bits
Reset
DSP_Int
PCMCIA I/F(EPD)
3.3V or 5.0V
-48V
