XECOM XEISDNP Datasheet

Loading...
XECOM XEISDNP Datasheet

XEISDNP

Single Module ISDN Analog Telephone

(POTS) Equipment Interface

 

 

Features

 

 

• Small size: 2.75" x 1.38" x 0.42"

 

 

• Adds POTS function to XECOM XEISDNU

 

 

• Supports standard analog telephones, Group 3

 

 

 

FAX machines, and analog modems

 

 

• Provides all Central Office functions to analog

 

 

 

telephone equipment

 

 

• Uses GCI (IOM-2) or IDL standard communi-

 

 

 

cation bus to exchange voice/fax/data between

 

 

 

its on board CODEC and ISDN Terminal

 

 

 

Adapter

Description

 

Pin configurable to Mu-law or A-law PCM

 

 

coding

The XEISDNP is a multichip module designed

Programmable for B1 or B2 channel of the

 

ISDN Basic Rate interface

to interconnect analog telephone equipment such

 

 

 

as a handset, a Group 3 Fax machine, or an

Uses standard data bus to access DTMF

analog modem to an ISDN Terminal Adapter. The

 

codes from the ISDN TA

device provides all

the functions needed to

Built-in 150V DC inverter to support RING

support conventional

analog subscriber equip-

 

signal generation

ment including voice/fax data CODEC, DTMF

 

 

 

tone detector, RING

signal generator and tele-

Built in power supply provides the telephone

phone line power feed. It provides a simple,

 

handset with 30 to 50 mA current

compact solution for designers who wish to inte-

 

 

grate an ISDN digital interface into their designs

 

 

but also protect their user’s investment in their

 

 

existing POTS (Plain Old Telephone Service)

 

 

equipment.

 

 

 

The XEISDNP is designed to interface with the

 

 

XECOM XEISDNU Single Module ISDN Terminal

 

 

Adapter.

 

 

 

 

 

 

 

Route CTRL

GCI or IDL Bus

CODEC

ROUTE

 

 

for

Voice/FAX/Modem signal path (Analog)

 

Voice/FAX

 

SWITCH

 

 

Data

 

 

Three state

 

 

 

DTMF output

 

 

 

 

DTMF

 

 

DTMF ready

Decoder

DC Power supply

RING Generator

 

To telephone set or FAX machine

+

10uF/250V

Off Hook

Power CTRL

RING CTRL

XEISDNP

Page 1

Mechanical Specifications

 

INCHES

METRIC (MM)

 

MIN

MAX

MIN

MAX

A

2.740

2.760

69.60

70.10

B

1.370

1.390

34.80

35.31

C

0.420

0.430

10.67

10.92

D

1.190

1.210

30.23

30.73

E

2.290

2.310

58.17

58.67

F

0.125

0.200

3.18

5.08

G

0.080

0.100

2.03

2.54

H

0.215

0.235

5.46

5.97

I

0.090

0.110

2.29

2.79

J

0.020

0.025

0.51

0.64

(Total pin count is 24 per side view.)

Pin Configuration

(Blank pin location indicates no pin installed)

TTIP

1

48

++5V

RING

2

47

GND

DC_OUT

3

46

B_M_CLK/RCLK

 

4

45

GND

NC

5

44

 

DR/RXDIN

6

43

 

DT/TXD1

7

42

 

FST/CD1N

8

41

 

FSR/TXD3

9

40

 

NC

10

39

 

NC

11

38

 

OH

12

37

 

DTMF_RDY

13

36

 

RING_EN

14

35

 

RING_DC

15

34

 

PWR_CTRL

16

33

 

ROUTE_CT

17

32

 

/PDI/DREQ

18

31

 

D4

19

30

 

D5

20

29

 

D6

21

28

GND

D7

22

27

Mu/A

-12V

23

26

NC

GND

24

25

+12V

Page 2

XEISDNP

Pin Descriptions

Name

Pin #

Direction

Description

TIP

1

I/O

Connect to POTS equipment

RING

2

I/O

Connect to POTS equipment

DC_OUT

3

Output

Test pin for the 150V DC supply for RING signal. Bypass to GND

 

 

 

with 10uF/250V capacitor.

NP

4, 29-44

 

No pin installed

NC

5,10,11,26

 

No connection allowed

DR/RXDIN

6

Input

Data Receive for IDL or GCI

DT/TXD1

7

Output

Data Transmit for IDL or GCI

FST/CDIN

8

Input

Frame Synchronize Transmission: This pin accepts an 8KHz

 

 

 

clock that synchronizes the output of the serial PCM data at the

 

 

 

DT pin.

FSR/TXD3

9

Input

When an ISDN mode (IDL or GCI) has been selected with

(B2/B1)

 

 

BCLKR, this pin selects either B1 (logic 0) or B2 (logic 1) as the

 

 

 

active data channel.

NC

10,11

 

No connection allowed

OH

12

Output

On/Off hook status of POTS equipment

DTMF_RDY

13

Output

Signal to inform controller a DTMF tone has been detected

RING_EN

14

Input

Control to cycle on and off theRING voltage when DC_EN is

 

 

 

active.

DC_EN

15

Input

Control signal to enable 150 VDC generation for RING signal.

 

 

 

This pin should be held high from before the first RING ENable

 

 

 

until the phone set goes off hook or the caller hangs up.

PWR_CTRL

16

Input

Control signal for powering up POTS telephone set.

ROUTE_CTRL

17

Input

Control pin for voice signal switching inside the module.

/PDI

18

Input

Power down mode control.

D4 - D7

19-22

Output

Connect to controller main data bus low byte, lines D4 - D7;

 

 

 

carries DTMF code.

-12V

23

 

-12V DC power supply

GND

24,28,45,47

 

Ground

+12V

25

 

+12V DC power supply

Mu/A

27

Input

Connect to logic 1 (+5V) selects A law and logic 0 (GND) selects

 

 

 

Mu law

B_M_CLK

46

 

When this pin is held at a logic 1, FST, BCLKT, DT and DR

/RCLK

 

 

become IDL mode. When this pin is held at a logic 0, FST,

(IDL/GCI)

 

 

BCLKT, DT and DR become GCI mode.

 

 

 

VCC

48

 

+5V DC power supply

XEISDNP

Page 3

+ 5 hidden pages