DS2290 View Datasheet(PDF) - Dallas Semiconductor -> Maxim Integrated

Part Name

Description

Manufacturer

DS2290

T1 Isolation Stik

Dallas Semiconductor -> Maxim Integrated 

DS2290

DS2290

T1 Isolation Stik

FEATURES

• Protected interface for connecting equipment to T1

lines

• Provides 800 volts of surge protection and 1500 volts

of isolation

• FCC Part 68 registered

• Meets TR 62411 and T1.403–1989 for transmit pulse

characteristics

• Line build outs of 0, –7.5, and –15 dB

• Companion to the DS2291 T1 Long Loop Stik

• Connects to a standard 30–pin single in–line connec-

tor

• Single +5V supply

• Compatible with the DS2180A and DS2141A T1

Tranceivers

PIN ASSIGNMENT

VDD 1

VDD 2

LCLK 3

LPOS 4

LNEG 5

TCLK 6

TPOS 7

TNEG 8

LB 9

NC 10

LB2 11

LB1 12

LB0 13

TAIS 14

B8ZS 15

NC 16

NC 17

NC 18

RX+ 19

RX– 20

NC 21

GND 22

GND 23

NC 24

RXTIP 25

LPWR+ 26

RXRING 27

TXTIP 28

LPWR– 29

TXRING 30

(ACTUAL SIZE)

DESCRIPTION

The DS2290 T1 Isolation Stik provides all the surge and

isolation protection that is necessary to connect a piece

of equipment to a T1 line. It offers a function similar to

that provided by a Data Access Arrangement (DAA)

when a modem is connected to a phone line. The

DS2290 is FCC Part 68 pre–registered so the user can

connect equipment to T1 lines without any further test-

ing or qualification. It contains onboard waveshaping

circuitry that creates transmit pulses meeting the latest

T1 specifications including TR 62411 (Accunet* T1.5

Service Description and Interface Specifications, – De-

cember 1990) and T1.403–1989 (Carrier to Carrier In-

stallation – DS1 Metallic Interface). Applications in-

clude Channel Service Units and similar equipment that

requires a fully protected interface.

* Service mark of AT&T Communications

022798 1/9

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