System80 881 User manual

System80 Inc.
*Not all features available with current rmware at time of release (Feb./2021)
Follow the instructions on the opppostite page to connect the
881 to your 880.
Before using the Trigger Input Interface (TII) your 880 needs
to be updated to at least rmware version 1.1.3. See
system80.net/880-rmware/ to learn how to update your
880's rmware.
The TII is not active by default.Performthefollowing
steps to active the TII:
1. Use the Mode Selector button to put your 880 in
MANUAL PLAY mode.
2. Press and hold the SHIFT-WRITE/NEXT key and use the
AUTO FILL IN selector button to select SYNC OUT.
3. Press and hold the SHIFT-WRITE/NEXT key and press
STEP 8. The 881's TII ACTIVE LED will light indicating that
the TII is now active.
Accent will be applied whenever the input to ASSIGN 1 is
high and the ASSIGN 2 state will select which of the dual
instruments will play. Leaving MANUAL PLAY mode or
changing the SYNC mode will disable the TII. The TII is
automatically disabled when the sequencer is running. The
880 does not currently recall the TII active state. You will
need to turn it on again after a power cycle.
Improvements to this interface will come in a later rmware.
system80.net r.02/2021
SYNC24
RUN
MIDI OUT
CLOCK
BD SD LT/LC
MT/MC HT/HC RS/CL
CP MA CB
CY OH CH
AC/1 SEL/2
TII
ACTIVE
TRIGGER
INPUT
INTERFACE
TRANSPORT CONTROL
MIDI OUT*
MIDI CLOCK OUTPUT
SYNC24 IN/OUT
24 PPQN CLOCKSYNC24 RUN/STOP
INSTRUMENT SELECT
ASSIGN 2*
ACCENT
ASSIGN 1*
INSTRUMENT TRIGGER INPUTS
TII ACTIVE LED
MIRRORED ON RUN
AND CLOCK JACKS
Using the Trigger Input Interface
881 TRIGGER INPUT INTERFACE USER GUIDE

880 REAR PANEL 881 REAR PANEL
T R I G G E R
I N P U T
I N T E R F A C E
TRIGGER
INPUT
INTERFACE
ISP/TII DIN EXPANDER
This module is only for use with
the System80 880 Eurorack drum
machine module. Please refer to
documentation for connection
and use: system80.net.
10HP
880
881
8 PIN
6 PIN
6 PIN
6 PIN
Installation
The 881 comes with 2 ribbon cables that need to
be connected to the rear panels of the 880 and
881. The DIN Expander cable has an 8 pin
connector on one end and a 6 pin connector on
the other end. Connect the 8 pin connector to the
881 DIN Expander socket and the 6 pin connector
to the DIN Expander socket on the 880. The ISP
cable has 6 pin connectors on both ends.
Connect the 6 pin ISP connectors between the
881 and the 880 (labelled 'ISP TRIGGER INPUT'
IMPORTANT! Both the DIN Expander and ISP
connectors are 6 pin connectors that can be
inadvertently swapped, so pay close attention to
the labels when connecting them. If they are
swapped the Trigger Input Interface and the DIN
Sync transport control will not function correctly.
There shouldn't be any magic smoke either, but
let's not tempt fate, shall we?
The DIN Expander cable carries the DIN SYNC24 RUN/STOP and
CLOCK data, the ASSIGN 1 and 2 signals, and the MIDI OUT data.
The ISP cable carries the trigger input data over a serial data interface
that must be activated in the 880 rmware (see over).
IMPORTANT! The signals on the ISP serial data interface are shared with the 880's
TRIGGER 1 and TRIGGER 2 jacks. When the Trigger Input Interface is active,
unplug any cables that are in the TRIGGER 1 and TRIGGER 2 jacks. When the TII is
active, high speed serial data will be transmitted on these jacks and will likely
befuddle whatever module or instrument you have connected to them.
on some 880s).