[Yaesu] FT-897D jumpers for keying/isolation relay

[mikea]

I remember seeing somewhere a post about changing a jumper on the 
FT-897D so that the ACC jack provides a collector-to-ground circuit
(equivalent to a contact closure) when the 897D is in transmit mode.
I can't find it anywhere in my files, and appear to have lost it. 

I want to use this to drive a coax relay to pull my RFSpace SDR-IQ off
the antenna line it will share with the FT-897d, so that I don't fry 
the SDR-IQ's front end. Since I'll be using 12V to drive the relay, 
at something like 60 mA, it'll be well within what I recall seeing 
as the max ratings: something like 25 VDC and 160 mA, though I Could 
Be Wrong, 

I seem to recall that the jumper is 711 or 1711 or 2711, but can't
be sure, and definitely want to avoid doing anything until I have the
correct information 

Can anyone help me? 

-- 
Mike Andrews, W5EGO
mikea at mikea.ath.cx
Tired old sysadmin