Nortel Networks 553-3001-211 Manual Do Utilizador
Page 848 of 894
QPC513 Enhanced Serial Data Interface card
17
Receiver signal element timing (DCE)
—
3
DD
24
Transmitter signal element timing (DTE)
3
—
DA
Table 264
Connector J1 and J2 pin assignments – high-speed interface (Part 1 of 2)
Connector J1 and J2 pin assignments – high-speed interface (Part 1 of 2)
Pin number
Signal functions
Signal source
EIA
circuit
(lead)
To DCE
From
DCE
Ground and
common return
1
7
7
Shield
Signal ground (SG)
n/a
n/a
n/a
n/a
n/a
n/a
AB
Data
2
3
3
13
16
16
Transmitted data – lead A
Received data – lead A
Transmitted data – lead B
Received data – lead B
3
—
3
—
—
3
—
3
BA (A)
BB (A)
BA (B)
BB (B)
BB (A)
BA (B)
BB (B)
Control
4
5
6
8
5
6
8
20
Request to send (RTS)
Clear to send (CTS)
Data set ready (DSR)
Carrier detect (CD)
Data terminal ready (DTR)
3
—
—
—
—
—
3
—
3
3
3
3
3
CA
CB
CB
CC
CF
CD
Note: Pins not used are 9, 10, 11, 18, 19, 21, 22, 25.
Table 263
Connector J1 and J2 pin assignments – RS-232-C interface (Part 2 of 2)
Connector J1 and J2 pin assignments – RS-232-C interface (Part 2 of 2)
Pin number
Signal functions
Signal source
EIA
circuit
To DCE
From DCE
Note: Pins not used are 9 to 14, 16, 18, 19, 21, 22, 25.