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
—3DD (B)
14 Transmitter signal element tim-
ing (DCE) – lead B
—3DB (B)
15 Transmitter signal element tim-
ing (DCE) – lead A
—3DB (A)
17 Transmitter signal element tim-
ing (DTE) – lead A
—3DD (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 (Part2 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.