XEISDNB View Datasheet(PDF) - Xecom

Part Name

Description

MFG CO.

XEISDNB

ISDN Terminal Adapter with NT1 and Channel Bonding

Xecom 

Pin Configuration

TIN1

1

TIN2

2

3

TOUT1

4

TOUT2

5

Reserved

6

Reserved

7

Reserved

8

GND

9

CFG/SDO

10

TD TTL

11

RD TTL

12

RTS TTL

13

CTS TTL

14

DSR TTL

15

CD TTL

16

TCLK TTL

17

Reserved

18

DTR TTL

19

RI TTL

20

MCLK TTL

21

RST BT

22

23

GND

24

48

+5V

47

DCL

46

DOUT

45

DIN

44

FSX

43

Reserved

42

Reserved

41

Reserved

40

Reserved

39

FSR

38

isp EN

37

SCLK

36

OH/MODE

35

DTMF RDY/SDI

34

RING EN

33

DC EN

32

PWR CTRL

31

RT CTRL

30

PDI

29

D4

28

D5

27

D6

26

D7

25

Reserveded

Pin Descriptions

Pin Name

TIN1

TIN2

No Pin

TOUT1

TOUT2

Reserved

Reserved

Reserved

GND

CFG/SDO

Pin #

1

2

3

4

5

6

7

8

9

10

Direction

N/A

N/A

N/A

N/A

Ground

Input/Output

TD_TTL

RD_TTL

11 Input

12 Output

Description

ISDN U transformer primary A

ISDN U transformer primary B

No pin

ISDN U transformer secondary A

ISDN U transformer secondary B

No user connection allowed

No user connection allowed

No user connection allowed

Power & signal ground

Configuration setup. See Modes of Operation. When re-pro-

gramming the In-System Programmable (ISP) CPLD, this pin is

used for the cascade connections and should not be pulled low or

high.

RS-232C, Transmitted Data, TTL Level

RS-232C, Received Data, TTL Level

XECOM

(3)

XEISDNB

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