Boss ME-20 Owner's Manual page 28

Other Functions
When Connecting Two FS-5Us or an FS-6
* Using a special Roland PCS-31L connection cable (optional), you can connect two FS-5Us.
fig.FS-5U1-e.eps_80/fig.FS-5U2-e.eps_80/fig.FS-6-e.eps_80
If using an FS-6 switch, set the MODE and
POLARITY switches as shown below.
B
28
PCS-31L
Bypass/Tuner OD/DS SOLO
On/Off On/Off
Bank down Bank up
If using an FS-5U switch, set
A
Red White
Bypass/Tuner OD/DS SOLO
On/Off On/Off
Bank down Bank up
the POLARITY switch as
shown in the following.