Nortel-networks Circuit Card Manuale Utente Pagina 861

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QPC513 Enhanced Serial Data Interface card Page 861 of 906
Circuit Card Description and Installation
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 269
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.
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