Connect Tech Blue Heat/Net Sync User Manual

Pinouts

DB-25 Female Pinouts

 

 

DB25F

 

 

 

 

 

 

Line Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin #

 

 

Signal Name

 

 

V.35

EIA-530

RS232

 

EIA-530A

X.21

 

 

 

 

 

 

 

V.28 in brackets

 

 

 

 

(V.28)

 

 

(V.11)

 

 

14

 

 

 

TX+

 

 

 

V.35 [4]

V.11

Hi-Z

 

V.11

V.11

 

 

2

 

 

 

TX- (TX)

 

 

 

V.35 [4]

V.11

V.28

 

V.11

V.11

 

 

 

16

 

 

 

RX+

 

 

 

V.35 [4]

V.11 [1]

Hi-Z

 

V.11 [1]

V.11 [1]

 

 

 

3

 

 

 

RX- (RX)

 

 

V.35 [4]

V.11 [1]

V.28

 

V.11 [1]

V.11 [1]

 

 

23

 

 

 

DTR+

 

 

 

Hi-Z

V.11

Hi-Z

 

Hi-Z

V.11

 

 

20

 

 

 

DTR- (DTR)

 

 

V.28

V.11

V.28

 

V.10

V.11

 

 

 

19

 

 

 

RTS+

 

 

 

Hi-Z

V.11

Hi-Z

 

V.11

V.11

 

 

 

4

 

 

 

RTS- (RTS)

 

 

V.28

V.11

V.28

 

V.11

V.11

 

 

13

 

 

 

CTS+

 

 

 

Hi-Z

V.11

Hi-Z

 

V.11

V.11

 

 

5

 

 

 

CTS- (CTS)

 

 

V.28

V.11

V.28

 

V.11

V.11

 

 

 

21

 

 

 

DSR+

 

 

 

Hi-Z

V.11

Hi-Z

 

Hi-Z

V.11

 

 

 

6

 

 

 

DSR- (DSR)

 

 

V.28

V.11

V.28

 

V.10

V.11

 

 

10

 

 

 

DCD/RX_SYNC_IN+ [5]

 

 

Hi-Z

V.11

Hi-Z

 

V.11

V.11

 

 

8

 

 

 

DCD/RX_SYNC_IN- [5] (DCD)

 

 

V.28

V.11

V.28

 

V.11

V.11

 

 

 

11

 

 

 

TXC+ [2]

 

 

 

V.35 [4]

V.11 [2]

Hi-Z

 

V.11 [2]

V.11 [2]

 

 

 

24

 

 

 

TXC- [2]

(TXC)

 

 

V.35 [4]

V.11 [2]

V.28

 

V.11 [2]

V.11 [2]

 

 

9

 

 

 

RXC+ [2]

 

 

 

V.35 [4]

V.11 [2]

Hi-Z

 

V.11 [2]

V.11 [2]

 

 

17

 

 

 

RXC- [2]

(RXC)

 

 

V.35 [4]

V.11 [2]

V.28

 

V.11 [2]

V.11 [2]

 

 

 

15

 

 

 

(TXC)

 

 

 

NC

NC

V.28

 

NC

NC

 

 

 

12

 

 

 

RX_SYNC_OUT- [6]

 

 

V.28

NC

V.28

 

NC

NC

 

 

22

 

 

 

RI (RI)

 

 

 

V.28

V.10

V.28

 

V.10

Hi-Z

 

 

18

 

 

 

TX_TRIGGER

 

[7]

[7]

[7]

 

[7]

[7]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7, 1

 

 

SR

 

 

 

SR

SR

SR

 

SR

SR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[1]

120 ohm resistor applied between the (+) and (-) signals.

 

 

 

 

 

 

[2]

120 ohm resistor applied between the (+) and (-) signals when the signal is an input.

 

 

 

[3]

This signal can be programmed to be a input or an output.

 

 

 

 

 

 

[4]

V.35 Termination Network is applied between (+) and (-) signals.

 

 

 

 

[5]

External Sync input used to enable or disable the receiver. This pin is used in external Sync

 

 

[6]

mode. A logical low will enable the receiver.

 

 

 

 

 

 

 

This output indicates that the Receiver has received a RX Sync character. It could also be used

 

 

[7]

as a general purpose I/O signal.

 

 

 

 

 

 

 

 

 

 

See the table titled Auxiliary Connector under TX_TRIGGER for details.

 

 

 

NC means DO NOT CONNECT.

Signal Description:

 

Mode

 

 

Equivalent Standard

 

 

Electrical

 

 

Typical Voltage

 

 

 

 

 

 

 

 

 

V.10

 

 

RS-423

 

 

Single ended

 

 

+/- 5VDC

 

V.11

 

 

RS-422 / RS485

 

 

Differential

 

 

1.5VDC to 4.5VDC

 

V.28

 

 

RS-232

 

 

Single ended

 

 

+/-12VDC

 

V.35

 

 

V.35

 

 

Differential

 

 

550mVDC

 

Table 9: DB-25 Female Pinouts

64

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Connect Tech CTIM-00044 user manual DB-25 Female Pinouts, Mode Equivalent Standard Electrical Typical Voltage