QPC513 Enhanced Serial Data Interface card Page 847 of 894

Connector pin assignments

Table 263 shows the pin assignments for J1 and J2 when the port is configured for RS-232-C interface, and Table 264 on page 848 shows the pin assignments for J1 and J2 when the port is configured for the high-speed interface.

Table 263

Connector J1 and J2 pin assignments – RS-232-C interface (Part 1 of 2)

 

 

Signal source

 

 

 

 

 

EIA

 

 

 

 

Pin number

Signal functions

To DCE

From DCE

circuit

 

 

 

 

 

Ground and

 

 

 

 

common return

 

 

 

 

 

 

 

 

 

1

Shielded

n/a

n/a

 

 

 

 

 

 

7

Signal ground (SG)

n/a

n/a

AB

 

 

 

 

 

Data

 

 

 

 

 

 

 

 

 

2

Transmitted data (TX)

3

—

BA

 

 

 

 

 

3

Received data (RX)

—

3

BB

 

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

4

Request to send (RTS)

3

—

CA

 

 

 

 

 

5

Clear to send (CTS)

—

3

CB

 

 

 

 

 

6

Data set ready (DSR)

—

3

CC

 

 

 

 

 

8

Carrier detect (CD)

—

3

CF

 

 

 

 

 

20

Data terminal ready (DTR)

3

—

CD

 

 

 

 

 

Timing

 

 

 

 

 

 

 

 

 

15

Transmitter signal element timing (DCE)

—

3

DB

 

 

 

 

 

Note: Pins not used are 9 to 14, 16, 18, 19, 21, 22, 25.

Circuit Card Description and Installation

Page 846 Page 848
Page 847
Image 847
Nortel Networks 553-3001-211 manual Data, Control, Timing
Page 846 Page 848
Top Page Image Contents