S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
5.3 3G Wireless WAN Uplink PHY Line Card
The S/UNI-IMA-4 supports 4 T1/E1 links providing IMA, ATM over T1/E1, and ATM over
fractional T1/E1 functionality ideal for 3G Wireless applications as shown in Figure 3. The pin
compatible and software compatible S/UNI-IMA-8 can upgrade the existing S/UNI-IMA-4 to
allow a single design to support current and future scalability. Similar to the Remote DSLAM
WAN Uplink application, this design is based on the Vortex Chipset used to aggregate the
traffic, perform buffering, switching, scheduling, addressing, policing, and OAM functions at
OC-3 traffic rates.
The PM7326 S/UNI-APEX performs the traffic shaping, management, and switching to route
cells between the WAN Uplink PHY line card and the Baseband Cards. Additional Common
cards are hot swappable using the Vortex backplane architecture, and allow design of a fully
redundant, 1:1 protection switching system placing the costly core architecture onto a
centralized common card. Between the multiple cards, an embedded inter-card communications
channel, and system timing distribution provides for a low cost, high functionality
intershelf/intrashef interconnect architecture.
Figure 3 3G Wireless Base Station Controller with IMA WAN PHY Line Card
RF Card
PA
DAC
RF Upconverter
ADC
RF Downconverter
PM7815
Paladin-15
DSP
Baseband Card
DSP
Common
Control Card
UTOPIA L2 /
Any-PHY
PM8353
PM7819
DSP
Quad-PHY
Waveshaper
UTOPIA L2
PM7329
S/UNI-APEX-
1K800
Signal
PM7350
PM8353
PM8353
Demux
S/UNI-DUPLEX
Quad-PHY
Quad-PHY
AAL2
PM7351
Processing
S/UNI-VORTEX
PM7328
S/UNI-ATLAS-
1K800
WAN Uplink PHY Line Card
Clock/Data
PM4354
COMET-
QUAD
PM7350
PM7348
S/UNI-IMA-4
RM7000
S/UNI-DUPLEX
Clock/Data
PM4354
COMET-
QUAD
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
25
PMC [ PMC-SIERRA, INC ]
