DS2196 datasheet(7/157 Pages) DALLAS

7 / 157 page

DS2196

7 of 157

1.2 Typical Applications

1.3 Functional Description

The analog AMI/B8ZS waveform off of the T1 line is transformer coupled into the RRING and RTIP

pins of the DS2196. The device recovers clock and data from the analog signal and passes it through the

optional jitter attenuator to the receive side framer where the digital serial stream is analyzed to locate the

framing/multiframe pattern. The DS2196 contains an active filter that reconstructs the analog received

signal for the nonlinear losses that occur in transmission. The device has a usable receive sensitivity of 0

dB to –36 dB, which allows the device to operate on cables up to 6000 feet in length. The receive side

framer locates D4 (SLC–96) or ESF multiframe boundaries as well as detects incoming alarms including,

carrier loss, loss of synchronization, blue (AIS) and yellow alarms.

The transmit side of the DS2196 is totally independent from the receive side in both the clock

requirements and characteristics. The transmit formatter will provide the necessary frame/multiframe data

overhead for T1 transmission. Once the data stream has been prepared for transmission, it is sent via the

optional jitter attenuator to the wave shaping and line driver functions. The DS2196 will drive the T1 line

from the TTIP and TRING pins via a coupling transformer. The line driver can handle both long haul

(CSU) and short haul (DSX–1) lines.

Long /

Short

Haul

Line

Interface

Unit

(LIU)

Framer A

Rx HDLC

Tx HDLC

Formatter A

Framer B

Rx HDLC

Tx HDLC

Formatter B

Long /

Short

Haul

Line

Interface

Unit

(LIU)

Interface

Microcontroller

DS2196

1.544 MHz

Long /

Short

Haul

Line

Interface

Unit

(LIU)

Framer A

Rx HDLC

Tx HDLC

Formatter A

Framer B

Rx HDLC

Tx HDLC

Formatter B

T3 /

SONET /

Optical

Mux

Network

Interface

Microcontroller

DS2196

1.544 MHz

NRZ

Interface

OFFICE REPEATER/NIU

Long /

Short

Haul

Line

Interface

Unit

(LIU)

Framer A

Rx HDLC

Tx HDLC

Formatter A

Framer B

Rx HDLC

Tx HDLC

Formatter B

Short

Haul

Line

Interface

Unit

(LIU)

Telco

Interface

CPE

Interface

Microcontroller

DS2196

1.544 MHz

Long /

Short

Haul

Line

Interface

Unit

(LIU)

Framer A

Rx HDLC

Formatter A

Framer B

Rx HDLC

Tx HDLC

Formatter B

HDSL1 /

HDSL2

Modem

Interface

(Remote or

CO Located)

One or Two

Sets of

Twisted

Pair

Microcontroller

DS2196

1.544 MHz

NRZ

Interface

CSU APPLICATION

HDSL1/HDSL2 APPLICATION

T3/SONET/OPTICAL MULTIPLEXER

APPLICATION

DS2196 bảng dữ liệu(PDF) 7 Page - Dallas Semiconductor

DS2196 bảng dữ liệu(HTML) 7 Page - Dallas Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL