SmartNode 4900 User Manual

C • Port pin-outs

 

 

Sync Serial port

Two types of serial ports are available: V.35 or X.21. They are configured as DTE. The V.35 is presented on a DB-25 female connector (see table 14 for pin-outs). The X.21 is presented on a DB-15 female connector (see table 15 for pin-outs).

Note Pins not listed are not used

Table 14. V.35 serial port signals (DB-25 connector)

Pin

Description

 

 

1

Frame Ground

2

TD-a (to DCE)

 

 

3

RD-a (from DCE)

4

RTS (to DCE)

 

 

5

CTS (from DCE)

6

DSR (from DCE)

 

 

7

Signal Ground

8

CD (from DCE)

 

 

9

RC-b (from DCE)

11

XTC-b (to DCE)

 

 

12

TC-b (from DCE)

14

TD-b (to DCE)

 

 

15

TC-a (from DCE)

16

RD-b (from DCE_

 

 

17

RC-a (from DCE)

20

DTR (to DCE)

 

 

24

XTC-a (to DCE)

 

 

Table 15. X.21 serial port signals (DB-15 connector)

Pin

Description

 

 

1

Signal Ground

8

DTE Common Return

 

 

2

Transmit (to DCE)

3

Control (to DCE)

 

 

4

Receive (from DCE)

5

Indication (from DCE)

 

 

6

Signal Element Timing (from DCE)

9

Transmit (to DCE)

 

 

10.

Control (to DCE)

11

Receive (from DCE)

 

 

12

Indication (from DCE)

13

Signal Element Timing (from DCE)

 

 

Sync Serial port

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Patton electronic 4900 user manual Sync Serial port

4900 specifications

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