The locomotives changed between Friday 11 and Saturday 12, but 9206 and 9214 were in use.
Both of these have what appears to be a "through" ECP cable running down the air tank side.
The cable runs around the headstock on the rear but isn't visible in my photos at the front end.
I assume that the additional trains have stretched the number of ECP fitted locomotives (only TT class in coal service, but 93 class I believe are also fitted). It doesn't matter as long as there is a through cable and a fitted lead locomotive.
But since Intermodal are unlikely to use ECP in the near future, swapping 92 class for 93 class would give coal more ECP fitted units.