--- a/doc/Sniffing-hw-setup	Thu Sep 21 07:01:49 2023 +0000
+++ b/doc/Sniffing-hw-setup	Sun Sep 24 01:15:44 2023 +0000
@@ -54,6 +54,23 @@
 should have a working SIM sniffing path that is fully compatible with all 3
 voltage classes, per the original intent of FC SIMsniff project.
 
+Wire assignments for this HW setup
+----------------------------------
+
+A 6-wire ribbon cable, cut from a standard multicolor ribbon cable spool and
+outfitted with custom crimped connectors, will be used to make the connection
+between sim-fpc-pasv and mv-sniffer boards.  Wire color assignments in this
+ad hoc connection cable are:
+
+Wire		SIM interface pin
+---------------------------------
+brown		VCC
+red		RST
+orange		CLK
+yellow		GND
+green		GND
+blue		I/O
+
 HW setup version 2
 ==================