Nortel Networks Circuit Card - Manual (Page 860)

Page 860 of 906 QPC513 Enhanced Serial Data Interface card
553-3001-211 Standard 3.00 August 2005
17 Receiver signal element timing (DCE) — 3 DD
24 Transmitter signal element timing (DTE) 3 — DA
Table 269
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 Shield
Signal ground (SG)
n/a
n/a n/a
n/a
AB
Data
2
3
13
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)
Control
4
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
CA
CB
CC
CF
CD
Note: Pins not used are 9, 10, 11, 18, 19, 21, 22, 25.
Table 268
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.