Spectrum M2p.59 Series, Hardware Manual, Page: 179 / 190

Pin assignment of the multipin cable
(c) Spectrum Instrumentation GmbH 179
IDC footprints
The 20 pole IDC connectors have the following footprints. For easy usage in your PCB the cable footprint as well as the PCB top footprint are
shown here. Please note that the PCB footprint is given as top view. Pin 1 is marked on each IDC as shown:
The following table shows the relation between the card connector pin and the IDC pin and the signalt
* RFU: reserved for future use. Do not connect these lines, can be left floating.
** These four pins are each left floting, when their respective X line (X12, X13, X18 or X19) is jumper selected to be routed to one of the
SMB connectors.
Table 103: digital connector and cable: relation between the card connector pin and the IDC pin and the signal
Cable/IDC A Cable/IDC B
Signal IDC
pin
Card
pin
Card
pin
IDC
pin
Signal Signal IDC pin Card
pin
Card
pin
IDC pin Signal
X4 1 A1 A2 2 GND X12** 1 B1 B2 2 GND
X5 3 A3 A4 4 GND X13** 3 B3 B4 4 GND
X6 5 A5 A6 6 GND X14 5 B5 B6 6 GND
X7 7 A7 A8 8 GND X15 7 B7 B8 8 GND
X8 9 A9 A10 10 GND X16 9 B9 B10 10 GND
X9 11 A9 A12 12 GND X17 11 B9 B12 12 GND
X10 13 A13 A14 14 GND X18** 13 B13 B14 14 GND
X11 15 A15 A16 16 GND X19** 15 B15 B16 16 GND
RFU* 17 A17 A18 18 GND RFU* 17 B17 B18 18 GND
RFU* 19 A19 A20 20 GND RFU* 19 B19 B20 20 GND
Image 84: IDC connector pinning of standard digital connection
Image 85: IDC connector marking of pin 1