Appendix B — Transmission Modes

The EPC/X host adapter and the T1 Modem Bank transmit synchronous data in one of 75 modes. These modes are numbered 0 - 74, and each corresponds to a specific combination of wiring mode (4-Wire or 8-Wire), clocking method (internal, external or self-clocking) and baud rate. The 75 modes and their definitions are listed below:

8-Wire, Internally Clocked

 

 

 

Mode#

Mode

Baud Rate

Mode#

Mode

Baud Rate

0

NRZ

115K

13

NRZ

921K

3

NRZ

2400

14

NRZ

1229K

4

NRZ

4800

27

NRZ

1843K

5

NRZ

9600

28

NRZ

2458K

6

NRZ

19200

29

NRZ

3686K

7

NRZ

38400

70

NRZ

1843K

8

NRZ

57600

71

NRZ

2458K

9

NRZ

76800

72

NRZ

3686K

10

NRZ

115K

73

NRZ

7373K

11

NRZ

230K

74

NRZ

10M

12

NRZ

460K

 

 

 

8-Wire Synchronous Modem (External Clock)

 

 

Mode#

Mode

Baud Rate

Mode#

Mode

Baud Rate

15

NRZ

2400

35*

NRZ

2400

16

NRZ

4800

36*

NRZ

4800

17

NRZ

9600

37*

NRZ

9600

18

NRZ

19200

38*

NRZ

14400

19

NRZ

38400

39*

NRZ

19200

20

NRZ

57600

40*

NRZ

38400

21

NRZ

76800

41*

NRZ

57600

22

NRZ

115K

42*

NRZ

64111

23

NRZ

230K

43*

NRZ

76800

24

NRZ

460K

 

 

 

25

NRZ

921K

 

 

 

26

NRZ

1229K

 

 

 

30

NRZ

1843K

 

 

 

31

NRZ

2458K

 

 

 

32

NRZ

3686K

 

 

 

33

NRZ

14400

 

 

 

34

NRZ

115K

 

 

 

*Modes 35-43 are for RS-232 synchronous modems; modes 15-34 are for RS-422 synchronous modems.

Appendix B

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Digi 90031300 manual Wire, Internally Clocked Mode# Baud Rate, Wire Synchronous Modem External Clock Mode# Baud Rate