Subsystem Overveiw with Block Diagram!

Weinschel
C O R P O R A T I O N
SmartStep Subsystem Design Example....CELLULAR/PCS FADING SIMULATION
FRONT
PA NEL
REAR
PA NEL
Multi-Channel Attenuator System
BASE
STATION
AT1
8
6
MOBILE
STATION
8
7
S
A1
POWER
COMBINER
A4
POWER
COMBINER
AT3
AT5
6
4
5
AT6
3
2
3
AT4
5
4
1
AT2
A2
POWER 7
COMBINER
AT7
6
OUT
2
5
S
S
Weinschel Corporation
design and manufacturers
multipath attenuation subsystems for fading simulation/emulation
of cellular, 3G, GSM, PCS systems, laboratory testing of CATV,
cable modem, and wireless components and systems. These
subsystems integrate Weinschel SmartStep technology and other
standard microwave and RF components to provide quick, simple,
low cost design solutions.
The subsystem illustrated features:
! 800-1900 MHz frequency range
! 16 Input Channels to 8 Output Channels
! RS-232 Serial Interface
! Wide Dynamic Range: 127/1 dB steps
! Weinschel 3200T SmartStep Programmable Attenuators
Our new SmartStep technology streamlines system designs and
device integration by providing a flexible bus interface and components that are easy to configure and control.
4
OUT
8
AT9
3
8
2
A1
POWER 7
COMBINER
1
6
S
4
AT11
10
11
AT12
AT13
12
13
AT14
3
2
9
AT10
5
AT15
AT16
14
15
16
1
TO
AT1-AT16
Device Interface Bu (DIB)
A5
POWER SUPPLY
ASSY
S1
POWER
ON/OFF
SWITCH/
INDICATOR
+12 ± 1.7 V @ 3.4 A
POWER ON/OFF
Options: 50 & 75 Ω Systems; IEEE-488, RS-232, RS-422, RS-485
“SmartStep” Interface; Attenuation Range Up To 128.2 dB in 0.1 to
10 dB Steps; Wide Variety of Path Configurations (2x2, 4x16, 8x16,
8x32, et al); LCD Display and Front Panel/Local Control.
9/23/99
7
AT8
1
5305 Spectrum Drive, Frederick, MD 21703-7362 ! TEL: 301-846-9222, 800-638-2048 ! Fax: 301-846-9116
web: www.weinschel.com ! email: [email protected]
A6
RS-232
INTERFACE
PCB ASSY
AC INPUT PWR
IEEE-488
BUS
XF1