OTHER ATM/SONET/SDH Circuits 66

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Part RoHS Manufacturer Telecom IC Type Temperature Grade Terminal Form No. of Terminals Package Code Package Shape Package Body Material Applications Surface Mount No. of Functions No. of Channels Technology Nominal Negative Supply Voltage Maximum Supply Current Nominal Supply Voltage Power Supplies (V) Package Style (Meter) Package Equivalence Code Sub-Category Terminal Pitch Maximum Operating Temperature Minimum Operating Temperature Terminal Finish Terminal Position Data Rate JESD-30 Code Moisture Sensitivity Level (MSL) Maximum Seated Height Width Qualification Additional Features JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Length

SI5100-H-GL

Silicon Labs

ATM/SONET/SDH TRANSCEIVER

OTHER

BALL

195

LBGA

SQUARE

PLASTIC/EPOXY

SDH; SONET

YES

1

830 mA

1.8 V

1.8

GRID ARRAY, LOW PROFILE

BGA195,14X14,40

ATM/SONET/SDH ICs

1 mm

85 Cel

-20 Cel

TIN SILVER COPPER

BOTTOM

S-PBGA-B195

1.56 mm

15 mm

Not Qualified

e1

15 mm

VSC8479YYY

Microchip Technology

ATM/SONET/SDH TRANSCEIVER

OTHER

BALL

244

BGA

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

1.8 V

GRID ARRAY

BGA244(UNSPEC)

90 Cel

-5 Cel

BOTTOM

S-PBGA-B244

ONET1101LRGER

Texas Instruments

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

NO LEAD

24

HVQCCN

SQUARE

PLASTIC/EPOXY

SDH; SONET

YES

1

118 mA

3.3 V

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC24,.16SQ,20

.5 mm

100 Cel

-25 Cel

NICKEL PALLADIUM GOLD

QUAD

S-PQCC-N24

2

1 mm

4 mm

Not Qualified

e4

30

260

4 mm

ONET1101LRGETG4

Texas Instruments

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

NO LEAD

24

HVQCCN

SQUARE

PLASTIC/EPOXY

SDH; SONET

YES

1

118 mA

3.3 V

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC24,.16SQ,20

.5 mm

100 Cel

-25 Cel

Nickel/Palladium/Gold (Ni/Pd/Au)

QUAD

S-PQCC-N24

2

1 mm

4 mm

Not Qualified

e4

NOT SPECIFIED

260

4 mm

ONET1101LRGET

Texas Instruments

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

NO LEAD

24

HVQCCN

SQUARE

PLASTIC/EPOXY

SDH; SONET

YES

1

118 mA

3.3 V

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC24,.16SQ,20

.5 mm

100 Cel

-25 Cel

NICKEL PALLADIUM GOLD

QUAD

S-PQCC-N24

2

1 mm

4 mm

Not Qualified

e4

30

260

4 mm

ONET9901PARGT

Texas Instruments

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

NO LEAD

16

QCCN

SQUARE

UNSPECIFIED

SDH; SONET

YES

1

3.3 V

3.3

CHIP CARRIER

LCC16,.12SQ,20

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

QUAD

S-XQCC-N16

Not Qualified

ONET9901PARGPG4

Texas Instruments

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

NO LEAD

20

HVQCCN

SQUARE

PLASTIC/EPOXY

SDH; SONET

YES

1

.055 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC20,.16SQ,20

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

QUAD

S-PQCC-N20

1 mm

4 mm

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

4 mm

ONET9901PARGP

Texas Instruments

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

NO LEAD

20

HVQCCN

SQUARE

PLASTIC/EPOXY

SDH; SONET

YES

1

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC20,.16SQ,20

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

QUAD

S-PQCC-N20

1 mm

4 mm

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

4 mm

ONET8511TY

Texas Instruments

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

NO LEAD

18

DIE

RECTANGULAR

UNSPECIFIED

SONET

YES

1

.07 mA

3.3 V

3.3

UNCASED CHIP

DIE OR CHIP

Other Telecom ICs

85 Cel

-25 Cel

UPPER

R-XUUC-N18

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

HMC-C062

Analog Devices

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

UNSPECIFIED

RECTANGULAR

UNSPECIFIED

NO

1

-3.3 V

MICROELECTRONIC ASSEMBLY

70 Cel

-40 Cel

GOLD OVER NICKEL

UNSPECIFIED

R-XXMA-X

Not Qualified

e4

HMC-C065

Analog Devices

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

UNSPECIFIED

10

RECTANGULAR

UNSPECIFIED

NO

1

-3.3 V

MICROELECTRONIC ASSEMBLY

70 Cel

-40 Cel

GOLD OVER NICKEL

QUAD

R-XQMA-X10

Not Qualified

e4

AD6411ASTRL

Analog Devices

ATM/SONET/SDH TRANSCEIVER

OTHER

GULL WING

48

LFQFP

SQUARE

PLASTIC/EPOXY

YES

1

.075 mA

5 V

3.3/5

FLATPACK, LOW PROFILE, FINE PITCH

QFP48,.35SQ,20

Other Telecom ICs

.5 mm

85 Cel

-25 Cel

TIN LEAD

QUAD

S-PQFP-G48

1.6 mm

7 mm

Not Qualified

e0

7 mm

HMC-C060

Analog Devices

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

UNSPECIFIED

10

RECTANGULAR

UNSPECIFIED

NO

1

-3.3 V

MICROELECTRONIC ASSEMBLY

70 Cel

-40 Cel

GOLD OVER NICKEL

QUAD

R-XQMA-X10

Not Qualified

e4

HMC-C064

Analog Devices

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

UNSPECIFIED

10

RECTANGULAR

UNSPECIFIED

NO

1

-3.3 V

MICROELECTRONIC ASSEMBLY

70 Cel

-40 Cel

GOLD OVER NICKEL

QUAD

R-XQMA-X10

Not Qualified

e4

HMC-C061

Analog Devices

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

UNSPECIFIED

10

RECTANGULAR

UNSPECIFIED

NO

1

-3.3 V

MICROELECTRONIC ASSEMBLY

70 Cel

-40 Cel

GOLD OVER NICKEL

QUAD

R-XQMA-X10

Not Qualified

e4

AD6411AST

Analog Devices

ATM/SONET/SDH TRANSCEIVER

OTHER

GULL WING

48

LFQFP

SQUARE

PLASTIC/EPOXY

YES

1

.075 mA

5 V

3.3/5

FLATPACK, LOW PROFILE, FINE PITCH

QFP48,.35SQ,20

Other Telecom ICs

.5 mm

85 Cel

-25 Cel

QUAD

S-PQFP-G48

1.6 mm

7 mm

Not Qualified

7 mm

ADN2901XXX

Analog Devices

ATM/SONET/SDH TRANSCEIVER

OTHER

BALL

186

BGA

SQUARE

PLASTIC/EPOXY

ATM; SDH; SONET

YES

1

BIPOLAR

3.3 V

3.3

GRID ARRAY

BGA186,16X16,40

ATM/SONET/SDH ICs

1 mm

85 Cel

0 Cel

TIN LEAD

BOTTOM

S-PBGA-B186

2.06 mm

17 mm

Not Qualified

e0

17 mm

ADN2902XXX

Analog Devices

ATM/SONET/SDH TRANSCEIVER

OTHER

BALL

186

BGA

SQUARE

PLASTIC/EPOXY

ATM; SDH; SONET

YES

1

3.3 V

3.3

GRID ARRAY

BGA186,16X16,40

ATM/SONET/SDH ICs

1 mm

85 Cel

0 Cel

TIN LEAD

BOTTOM

S-PBGA-B186

2.06 mm

17 mm

Not Qualified

e0

17 mm

OQ2541BHP

NXP Semiconductors

ATM/SONET/SDH CLOCK RECOVERY CIRCUIT

OTHER

GULL WING

48

LFQFP

SQUARE

PLASTIC/EPOXY

SDH; SONET

YES

1

BIPOLAR

-3.35 V

.16 mA

-4.5

FLATPACK, LOW PROFILE, FINE PITCH

QFP48,.35SQ,20

ATM/SONET/SDH ICs

.5 mm

85 Cel

-10 Cel

QUAD

S-PQFP-G48

1.6 mm

7 mm

Not Qualified

7 mm

OQ2541BU

NXP Semiconductors

ATM/SONET/SDH CLOCK RECOVERY CIRCUIT

OTHER

NO LEAD

48

DIE

SQUARE

UNSPECIFIED

YES

1

-3.35 V

UNCASED CHIP

85 Cel

-10 Cel

UPPER

S-XUUC-N48

Not Qualified

FOA1252B1

Infineon Technologies

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

NO LEAD

25

DIE

RECTANGULAR

UNSPECIFIED

YES

1

BIPOLAR

3.3 V

UNCASED CHIP

105 Cel

-30 Cel

UPPER

R-XUUC-N25

Not Qualified

FOA1251B1

Infineon Technologies

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

GULL WING

16

TSSOP

RECTANGULAR

PLASTIC/EPOXY

ATM; SDH; SONET

YES

1

BIPOLAR

41 mA

3.3 V

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP16,.25

Other Telecom ICs

.65 mm

105 Cel

-30 Cel

TIN LEAD

DUAL

R-PDSO-G16

1.2 mm

4.4 mm

Not Qualified

e0

5 mm

MAX3260C/D

Maxim Integrated

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

NO LEAD

14

DIE

SQUARE

UNSPECIFIED

SDH; SONET

YES

1

BIPOLAR

.07 mA

5 V

5

UNCASED CHIP

DIE OR CHIP

Other Telecom ICs

100 Cel

0 Cel

TIN LEAD

UPPER

S-XUUC-N14

1

Not Qualified

e0

MAX3831UCB-D

Maxim Integrated

ATM/SONET/SDH MUX/DEMUX

OTHER

GULL WING

64

HTFQFP

SQUARE

PLASTIC/EPOXY

YES

1

3.3 V

FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH

.5 mm

85 Cel

0 Cel

TIN LEAD

QUAD

S-PQFP-G64

3

1.2 mm

10 mm

Not Qualified

e0

10 mm

MAX3831UCB

Maxim Integrated

ATM/SONET/SDH MUX/DEMUX

OTHER

GULL WING

64

HTFQFP

SQUARE

PLASTIC/EPOXY

ATM; SDH; SONET

YES

1

3.3 V

FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH

.5 mm

85 Cel

0 Cel

TIN LEAD

QUAD

S-PQFP-G64

1

1.2 mm

10 mm

Not Qualified

e0

10 mm

MAX3832UCB-T

Maxim Integrated

ATM/SONET/SDH MUX/DEMUX

OTHER

GULL WING

64

HTFQFP

SQUARE

PLASTIC/EPOXY

YES

1

3.3 V

FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH

.5 mm

85 Cel

0 Cel

TIN LEAD

QUAD

S-PQFP-G64

3

1.2 mm

10 mm

Not Qualified

e0

10 mm

MAX3822UCM+T

Maxim Integrated

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

GULL WING

48

HTFQFP

SQUARE

PLASTIC/EPOXY

ATM

YES

1

BIPOLAR

3.3 V

FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH

.5 mm

85 Cel

0 Cel

MATTE TIN

QUAD

S-PQFP-G48

1

1.2 mm

7 mm

Not Qualified

e3

7 mm

MAX3992UTG+T

Maxim Integrated

ATM/SONET/SDH CLOCK RECOVERY CIRCUIT

OTHER

NO LEAD

24

HVQCCN

SQUARE

UNSPECIFIED

SDH; SONET

YES

1

BIPOLAR

.145 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC24,.16SQ,20

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

MATTE TIN

QUAD

S-XQCC-N24

1

.8 mm

4 mm

Not Qualified

e3

4 mm

MAX3822UCM

Maxim Integrated

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

GULL WING

48

HTFQFP

SQUARE

PLASTIC/EPOXY

ATM

YES

1

BIPOLAR

.265 mA

3.3 V

3.3

FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH

TQFP48,.35SQ

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

Tin/Lead (Sn85Pb15)

QUAD

S-PQFP-G48

3

1.2 mm

7 mm

Not Qualified

e0

20

240

7 mm

MAX3991UTG

Maxim Integrated

ATM/SONET/SDH CLOCK RECOVERY CIRCUIT

OTHER

NO LEAD

24

HVQCCN

SQUARE

UNSPECIFIED

SDH; SONET

YES

1

BIPOLAR

.14 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC24,.16SQ,20

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

TIN LEAD

QUAD

S-XQCC-N24

1

.8 mm

4 mm

Not Qualified

e0

4 mm

MAX3832UCB

Maxim Integrated

ATM/SONET/SDH MUX/DEMUX

OTHER

GULL WING

64

HTFQFP

SQUARE

PLASTIC/EPOXY

ATM; SDH; SONET

YES

1

3.3 V

FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH

.5 mm

85 Cel

0 Cel

TIN LEAD

QUAD

S-PQFP-G64

1

1.2 mm

10 mm

Not Qualified

e0

10 mm

MAX3992UTG-T

Maxim Integrated

ATM/SONET/SDH CLOCK RECOVERY CIRCUIT

OTHER

NO LEAD

24

HVQCCN

SQUARE

UNSPECIFIED

SDH; SONET

YES

1

BIPOLAR

.145 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC24,.16SQ,20

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

TIN LEAD

QUAD

S-XQCC-N24

1

.8 mm

4 mm

Not Qualified

e0

4 mm

MAX3831UCB-TD

Maxim Integrated

ATM/SONET/SDH MUX/DEMUX

OTHER

GULL WING

64

HTFQFP

SQUARE

PLASTIC/EPOXY

YES

1

3.3 V

FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH

.5 mm

85 Cel

0 Cel

TIN LEAD

QUAD

S-PQFP-G64

3

1.2 mm

10 mm

Not Qualified

e0

10 mm

MAX3991UTG-T

Maxim Integrated

ATM/SONET/SDH CLOCK RECOVERY CIRCUIT

OTHER

NO LEAD

24

HVQCCN

SQUARE

UNSPECIFIED

SDH; SONET

YES

1

BIPOLAR

.14 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC24,.16SQ,20

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

TIN LEAD

QUAD

S-XQCC-N24

1

.8 mm

4 mm

Not Qualified

e0

4 mm

MAX3822U/D

Maxim Integrated

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

NO LEAD

49

DIE

RECTANGULAR

UNSPECIFIED

YES

1

BIPOLAR

3.3 V

UNCASED CHIP

85 Cel

0 Cel

TIN LEAD

UPPER

R-XUUC-N49

1

Not Qualified

e0

MAX3822UCM-T

Maxim Integrated

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

GULL WING

48

HTFQFP

SQUARE

PLASTIC/EPOXY

ATM

YES

1

BIPOLAR

3.3 V

FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH

.5 mm

85 Cel

0 Cel

TIN LEAD

QUAD

S-PQFP-G48

1

1.2 mm

7 mm

Not Qualified

e0

7 mm

MAX3832UCB-TD

Maxim Integrated

ATM/SONET/SDH MUX/DEMUX

OTHER

GULL WING

64

HTFQFP

SQUARE

PLASTIC/EPOXY

YES

1

3.3 V

FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH

.5 mm

85 Cel

0 Cel

QUAD

S-PQFP-G64

1.2 mm

10 mm

NOT SPECIFIED

NOT SPECIFIED

10 mm

MAX3831UCB-T

Maxim Integrated

ATM/SONET/SDH MUX/DEMUX

OTHER

GULL WING

64

HTFQFP

SQUARE

PLASTIC/EPOXY

YES

1

3.3 V

FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH

.5 mm

85 Cel

0 Cel

TIN LEAD

QUAD

S-PQFP-G64

3

1.2 mm

10 mm

Not Qualified

e0

10 mm

MAX3991UTG+

Maxim Integrated

ATM/SONET/SDH CLOCK RECOVERY CIRCUIT

OTHER

NO LEAD

24

HVQCCN

SQUARE

UNSPECIFIED

SDH; SONET

YES

1

BIPOLAR

.14 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC24,.16SQ,20

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

MATTE TIN

QUAD

S-XQCC-N24

1

.8 mm

4 mm

Not Qualified

e3

30

260

4 mm

MAX3822UCM+

Maxim Integrated

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

GULL WING

48

HTFQFP

SQUARE

PLASTIC/EPOXY

ATM

YES

1

BIPOLAR

.265 mA

3.3 V

3.3

FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH

TQFP48,.35SQ

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

MATTE TIN

QUAD

S-PQFP-G48

3

1.2 mm

7 mm

Not Qualified

e3

30

260

7 mm

MAX3992UTG+

Maxim Integrated

ATM/SONET/SDH CLOCK RECOVERY CIRCUIT

OTHER

NO LEAD

24

HVQCCN

SQUARE

UNSPECIFIED

SDH; SONET

YES

1

BIPOLAR

.145 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC24,.16SQ,20

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

MATTE TIN

QUAD

S-XQCC-N24

1

.8 mm

4 mm

Not Qualified

e3

30

260

4 mm

MAX3832UCB-D

Maxim Integrated

ATM/SONET/SDH MUX/DEMUX

OTHER

GULL WING

64

HTFQFP

SQUARE

PLASTIC/EPOXY

YES

1

3.3 V

FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH

.5 mm

85 Cel

0 Cel

QUAD

S-PQFP-G64

1.2 mm

10 mm

NOT SPECIFIED

NOT SPECIFIED

10 mm

MAX3825U/D

Maxim Integrated

ATM/SONET/SDH SUPPORT CIRCUIT

OTHER

NO LEAD

44

DIE

RECTANGULAR

UNSPECIFIED

ATM; SDH; SONET

YES

1

BIPOLAR

160 mA

3.3 V

3.3

UNCASED CHIP

DIE OR CHIP

Other Telecom ICs

85 Cel

0 Cel

TIN LEAD

UPPER

R-XUUC-N44

1

Not Qualified

e0

MAX3991UTG+T

Maxim Integrated

ATM/SONET/SDH CLOCK RECOVERY CIRCUIT

OTHER

NO LEAD

24

HVQCCN

SQUARE

UNSPECIFIED

SDH; SONET

YES

1

BIPOLAR

.14 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC24,.16SQ,20

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

MATTE TIN

QUAD

S-XQCC-N24

1

.8 mm

4 mm

Not Qualified

e3

4 mm

MAX3992UTG

Maxim Integrated

ATM/SONET/SDH CLOCK RECOVERY CIRCUIT

OTHER

NO LEAD

24

HVQCCN

SQUARE

UNSPECIFIED

SDH; SONET

YES

1

BIPOLAR

.145 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC24,.16SQ,20

ATM/SONET/SDH ICs

.5 mm

85 Cel

0 Cel

TIN LEAD

QUAD

S-XQCC-N24

1

.8 mm

4 mm

Not Qualified

e0

4 mm

TC35885TB

Toshiba

ATM/SONET/SDH MUX/DEMUX

OTHER

BALL

256

LBGA

SQUARE

PLASTIC/EPOXY

YES

1

3.3 V

GRID ARRAY, LOW PROFILE

1.27 mm

85 Cel

-5 Cel

TIN LEAD

BOTTOM

S-PBGA-B256

1.7 mm

27 mm

Not Qualified

e0

27 mm

RCV5737AH

Renesas Electronics

ATM/SONET/SDH RECEIVER

OTHER

PIN/PEG

22

RECTANGULAR

UNSPECIFIED

NO

1

-5.2 V

5 V

FIBER OPTIC

85 Cel

-20 Cel

UNSPECIFIED

R-XXFO-P22

Not Qualified

RCV5707AH

Renesas Electronics

ATM/SONET/SDH RECEIVER

OTHER

PIN/PEG

22

RECTANGULAR

UNSPECIFIED

NO

1

-5.2 V

5 V

FIBER OPTIC

85 Cel

-20 Cel

UNSPECIFIED

R-XXFO-P22

Not Qualified

ATM/SONET/SDH Circuits

ATM (Asynchronous Transfer Mode), SONET (Synchronous Optical Network), and SDH (Synchronous Digital Hierarchy) circuits are high-speed communication technologies used in telecommunications networks.

ATM is a cell-based network technology that enables high-speed data transfer, video and voice communication. It divides data into fixed-size cells and sends them across the network using time-division multiplexing (TDM).

SONET and SDH are both standard protocols for optical telecommunications transport. They use synchronous timing signals to enable high-speed communication over fiber optic networks. SONET is used primarily in North America, while SDH is used primarily in Europe and other regions.

ATM, SONET, and SDH circuits offer several advantages over other communication technologies. They provide high-speed communication with low latency, allowing for efficient data transfer and real-time voice and video communication. They also provide a high level of reliability and fault tolerance, making them ideal for use in mission-critical applications such as banking, healthcare, and defense.

However, these circuits also require specialized hardware and software, and can be more expensive to implement and maintain than other communication technologies. They also require a high level of expertise to configure and manage.