Patton electronic 4900 user manual Sync Serial port

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 63