Nortel Networks 553-3001-211 Manual Do Utilizador
QPC513 Enhanced Serial Data Interface card
Page 849 of 894
Timing
12
Transmitter signal element tim-
ing (DTE) – lead B
—
3
DD (B)
14
Transmitter signal element tim-
ing (DCE) – lead B
—
3
DB (B)
15
Transmitter signal element tim-
ing (DCE) – lead A
—
3
DB (A)
17
Transmitter signal element tim-
ing (DTE) – lead A
—
3
DD (A)
23
Receiver signal element timing
(DCE) – lead A
3
—
DA (A)
24
Receiver signal element timing
(DCE) – lead B
3
—
DA (B)
Table 264
Connector J1 and J2 pin assignments – high-speed interface (Part 2 of 2)
Connector J1 and J2 pin assignments – high-speed interface (Part 2 of 2)
Pin number
Signal functions
Signal source
EIA
circuit
(lead)
To DCE
From
DCE
Note: Pins not used are 9, 10, 11, 18, 19, 21, 22, 25.