
High Density T1/E1 Framer with Integrated M13 Multiplexer
PM4328
TECT3
FEATURES
• Integrates 28 T1 framers, 21 E1 
framers an d a full featured M13 
multiplexer with DS3 framer in a single  
monolithic device for terminating DS3 
multiplexed T1 or E1 streams. 
• Four fundamental modes of operation:
• Up to 28 T1 streams M13 
multiplexed into a serial DS3.
• Up to 21 E1 streams multiplexed 
into a DS3 following the ITU-T 
G.747 recommendation (using the 
serial clock and data or H-MVIP 
system interfaces).
• DS3 M13 Multiple xer wit h ingress or 
egress per link monitoring.
• Unchannelized DS3 framer mode 
for access to the entire DS3 
payload.
• Supports transfer of PCM data to/from 
1.544 MHz and 2.048 MHz serial 
interface system-side devices. Also 
supports a fractional T1 or E1 system 
interface with independent ingress/ 
egress Nx64 Kbps rates. Supports a 
2.048 MHz system-side interface for 
T1 mode without external clock 
gapping.
• Supports 8 Mbps H-MVIP on the 
system interface for all T1 or E1 links, 
a separate 8 Mbps H-MVIP system 
interface for all T1 or E1 CAS channels 
and a separate 8 Mbps H-MVIP 
system interface for all T1 or E1 CCS 
and V5.1/V5.2 channels.
• Supports a byte serial Scaleable 
Bandwidth Interconnect (SBI) bus 
interface for high density system side 
device interconnection of up to 84 T1 
streams or 3 DS3 streams.
• Provides jitter attenuation in the T1 or  
E1 receive and transmit directions.
• Provides two independent de-jittered 
T1 or E1 recovered clocks for system 
timing and redundancy.
• Provides per-DS0 line loopback and 
per link diagnostic and line loopbacks.
• Provides an on-board programmable 
binary sequence generator and 
detector for error testing at DS3 rates. 
Includes support for patterns 
recommended in ITU-T O.151.
• Also provides PRBS generators and 
detectors on each tributary for error 
testing at DS1, E1 and NxDS0 ra tes as 
recommended in ITU-T O.151 and 
O.152.
• Provides robbed bit signaling extraction and insertion on a per-DS0 basis.
• Provides programmable idle code 
substitution, data and sign inversion, 
and digital milli watt cod e inse rtio n on a 
per-DS0 basi s.
• Supports the M 23 a nd C-bi t parity D S3 
formats.
• Standalone unc hannelized DS3 framer  
mode for access to the entire DS3 
payload.
• When configured to operate as a DS3 
Framer, gapped transmit and receive 
clocks can be optionally generated for 
interface to link layer devices which 
only need access to payload data bits.
• DS3 Transmit clock source can be 
selected from either an external 
oscillator or from the recei ve side clo ck 
(loop-timed).
• Register level compatibility with the 
PM4388 TOCTL Octal T1 Framer, the 
PM6388 EOCTL Octal E1 Framer, the 
PM4351 COMET E1/T1 transceiver 
and the PM8313 D3MX M13 
Multiplexer/Demultiplexer.
DS3
PMC-2011654 (r1) PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE © Copyright PMC-Sierra, Inc. 2001
DS3
Framer
with
PRBS
M13
Multiplexer
T1/E1
Framer
T1/E1
Transmitter
RJAT
PMON
TJAT
PRBS
28xT1/21xE1 
Clock and Data
28xT1/21xE1 
on 7 H-MVIP buses
Scaleable Bandwidt 
Interconnect Bus
19.44 MHz
DS3 
Clock and Data

High Density T1/E1 Framer with Integrated M13 Multiplexer
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
PM4328 TECT3
• Provides a generic 8-bit 
microprocessor bus interface for 
configuration, control and status 
monitoring. 
• Provides a standard 5 signal P1149.1 
JTAG test port for boundary scan 
PACKAGE
• 324-pin fine pitch PBGA package 
(23 mm x 23 mm).
• Supports industria l temp erat ure rang e 
o
C to 85 oC) operation.
(-40 
board test purposes.
VOLTAGE
• Low power 2.5 V/3.3 V CMOS 
technology. All pins are 5 V tolerant.
APPLICATIONS
• High density T1 interfaces for 
multiplexers, multi-service switche s, 
routers and digital modems.
TYPICAL APPLICATIONS
CHANNELIZED DS3 CIRCUIT EMULATION APPLICATION
DS-3
DS-3
LIU
PM4328
TECT3
SBI
• High density E1 interfaces for 
multiplexers, multi-ser vice switches, 
routers and digital modems.
• Frame Relay switches and access 
devices (FRADS).
• M23 Based M13 Multiplexer.
• C-Bit Parity Based M13 Multiplexer.
• Channelized and Unchannelized DS3 
Frame Relay Interfaces.
Any-PHY
PM73122
AAL1gator-32
HIGH DENSITY FRAME RELAY APPLICATION
DS3 LIU
DS3 LIU
DS3 LIU
High Density T1/E1 Frame Relay Port Card
Head Office: 
PMC-Sierra, Inc. 
8555 Baxter Place 
Burnaby, B.C. V5A 4V7 
Canada 
Tel: 604.415.6000 
Fax: 604.415.6200
To order documentation, 
send email to: 
document@pmc-sierra.com 
or contact the head office, 
Attn: Document Coordinator
PM4328
TECT3
PM4328
TECT3
PM4328
TECT3
SBI
PM7384
FREEDM-
84P672
All product documentation is available 
on our web site at: 
http://www.pmc-sierra.com 
For corporate informatio n, 
send email to: 
info@pmc-sierra.com
PCI
PMC-2011654 (r1) 
© Copyright PMC-Sierra, Inc. 2001. All 
rights reserved. August 2001 
AAL1gator-II, ANy-PHY, SBI, 
TECT3,and PMC-Sierra are trademarks 
of PMC-Sierra, Inc.