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62virtuAl dAtA cAbles
With the switch in the down position, the input is set to TTL. Use this setting
for voltage‑type signals. GPIO inputs set for TTL operation can handle signal
voltages up to 5 Volts.
The up position (Isolated) sets the input to accept on/off switch signals.
Do not use the Isolated setting with voltage-based signals. See the
GPIO Specifications later in this document for additional configuration
information.
GPIO Terminal Blocks
Each GPIO input or output has a positive and negative contact that can
be wired as needed. Four of each are provided. Only a small screwdriver is
required.
MIDI In, MIDI Out
Two MIDI (Musical Instrument Digital Interface) ports, In and Out, are provided
on the 6416m. Each is capable of transferring any type of MIDI‑compatible
data. Pro64 devices do not process or filter MIDI data in any way.
VIRTUAL DATA CABLE PORTS
AC POWER
FUSE: VAC-FAL
IN
OUT
RS-
RESERVED
CONTROL MASTER
–8
IN OUT
ON
RS-
AMP
PIN = GND
VDC
BACKUP POWER
GPIO INPUT
UP= ISOLATED
DN=TTL
– –
Pin 2 Hot
Mic Input Module
B
A
Both MIDI ports in the VDC section can be used simultaneously.
One MIDI In per Pro64 device can be assigned to a VDC Slot. An unlimited
number of Pro64 modules can make use of the MIDI data by assigning MIDI
Out to the VDC Slot with the same number as the input source.
RS-232 Port
The Pro64 RS‑232 VDC ports allow a pair of devices to transfer control data
at rates up to 57.6k baud across the Pro64 network. Using Virtual Data Cables
for RS‑232 always requires two VDCs because RS‑232 data transfers require
communicating devices to be set up in a handshaking pair. Note that RS‑232
communication is point‑to‑point, meaning that a maximum of seven RS‑232
sessions (14 total devices) are possible when using Pro64 Virtual Data Cables.