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DS2282

T1 FDL Controller/Monitor Stik

Dallas Semiconductor -> Maxim Integrated 

DS2282

DS2282

T1 FDL Controller/Monitor Stik

FEATURES

• Fully implements the FDL message format as de-

scribed in the ANSI document T1.403–1989

• Fully implements the maintenance message protocol

described in AT&T TR 54016 (1986/89)

• Provides high–level monitor counts, namely:

– Errored Seconds

– Severely Errored Seconds

– Unavailable Seconds

• Important counts are stored in nonvolatile memory

• Works in conjunction with the DS2283 Enhanced T1

Line Card Stik or DS2180A T1 Transceiver

• Simple serial port used to retrieve information and

control operation

• Can be used without an external controller

• Connects to a standard 30–pin Single In–Line con-

nector

• Single +5V supply

PIN ASSIGNMENT

VDD 1

RLOS 2

RCLK 3

RPOS 4

RNEG 5

NC 6

INT 7

PRMXA 8

DRVEN 9

RXD 10

TXD 11

TLCLK 12

SLIP 13

PLB 14

PAS 15

UB1 16

UB2 17

UB3 18

UB4 19

B8ZS 20

RST 21

NC 22

GND 23

UB5 24

UB6 25

LLB 26

PSEN 27

TLINK 28

NC 29

NC 30

(actual size)

DESCRIPTION

The DS2282 completely controls the Facility Data Link

(FDL) as described in the Bellcore document TR–

TSY–000194 (Extended Superframe Format Interface

Specification – December 1987) and the ANSI docu-

ment T1.403–1989 (Carrier to Carrier Installation – DS1

Metallic Interface). It also implements the protocol that

is described in the AT&T publication TR 54016 (Re-

quirements for Interfacing DTE to Services Employing

ESF – 1986/89). In addition it provides a number of im-

portant performance parameters involved in monitoring

T1 lines such as Errored Seconds, Severely Errored

Seconds, and Unavailable Seconds.

022798 1/22

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