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2.2 External Inputs and Connectors

2.2.1 Connectors

The inputs of the Ndigo250M-14 are located on the PCI bracket. Figure 2.3 on page 5 shows the

location of the 4 analog inputs A to D and the two digital inputs G (GATE) and T (TRIGGER).

Furthermore, a board interconnection connector (C2) can be found at the top edge of the

Ndigo250M-14, as displayed in Figure 2.3 on page 5. Connector C2 is used as a bus interface

between multiple Ndigo boards. It is used for distributing clock, trigger and sync signals. Proper

termination must be placed at both ends of the bus interconnection ribbon cable, as shown in

ﬁgure 2.1.

Ndigo

250M-14

cronologic

Gate

Trigger

ABCDT

Figure 2.2: Input connectors of an Ndigo250M-14 located on the PCI bracket.

Figure 2.3: Schematics of an Ndigo250M-14 board showing inter-board connector C2.

cronologic GmbH & Co. KG 5 Ndigo250M-14 User Guide

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