There is more than one way to write these IR signals that are sent LSB first. The convention we use here is to reverse the bits within a single byte, but to keep the byte order. Other folks reverse the bits for the entire word.the only difference between the codes sent in the different modes is the last part. 0x1000 for mode 1, 0x10fa for mode 2
So based on the quoted info, I would try to send signals with device 250.16, since 0xfa is 250 in decimal. If that doesn't work, try 95.16.
ETA: here's a little more explanation. Let's use the JP1 device.subdevice pair of 18. 52 or 0x12.0x34.
00010010 00110100 --12.34 in binary
01001000 00101100 --bits reversed in each byte. This is the actual order sent in the IR signal.
0011010000010010 --reversed back for the entire word = 0x3412.
So our 0.16 looks like 0x1000 and 10fa looks like 250.16.