[Yaesu] FT-1000MP MK V keying SB-220

[Al Toothaker]

Just began the connections to a new MK V and find that the 120VDC from the
relay in the SB220 amplifier
is not compatible with the MK V relay which is good for only 100VAC or
60VDC.  However, the manual states it is compatible with the 220 and 221 in
the instructions for hooking up a linear amp.
Anyone know the real deal here?  I do now wish to fry the internal XCVR
relay but also do not relish the thought of adding another external relay
just to drove the SB-220 relay.

Thanks for any inputs...

Al, N6TA