Nortel Networks 553-3001-211 manual QPC513 Enhanced Serial Data Interface card Page 849

QPC513 Enhanced Serial Data Interface card Page 849 of 894

Table 264

Connector J1 and J2 pin assignments – high-speed interface (Part 2 of 2)

		Signal source
				EIA
			From	circuit
Pin number	Signal functions	To DCE	DCE	(lead)
Timing
12	Transmitter signal element tim-	—	3	DD (B)
	ing (DTE) – lead B
14	Transmitter signal element tim-	—	3	DB (B)
	ing (DCE) – lead B
15	Transmitter signal element tim-	—	3	DB (A)
	ing (DCE) – lead A
17	Transmitter signal element tim-	—	3	DD (A)
	ing (DTE) – lead A
23	Receiver signal element timing	3	—	DA (A)
	(DCE) – lead A
24	Receiver signal element timing	3	—	DA (B)
	(DCE) – lead B

Note: Pins not used are 9, 10, 11, 18, 19, 21, 22, 25.

Circuit Card Description and Installation