Specifi cations 12 – Sound Devices 788T User Manual
Page 172

Connector Pin
Assignments
Notes
USB-A Keyboard Input
center pin – signal 
sleeve – ground
For use with USB Keyboards only. Data transfer is not 
supported. 
C. Link In / Out
1 – +3.3 V 
2 – Tx (output) 
3 – ground 
4 – Rx (input) 
5 – WC in 
6 – TC in
Not a telephone jack! Used for Multi-Unit Linking and to 
connect to CL-1 Keyboard and Remote Roll Accessory 
and CL-2 Remote Fader. C. Link In is disabled when the 
Setup Menu Connection Mode is set to Connect to Wave 
Agent. 
Hirose 4-pin 
DC Input 
1 – ground 
2 – not connected
3 – not connected 
4 – DC (+) 
Charging characteristics defined by user in the Setup 
Menu.
DE-15 
Multi-Function Connector
AES I/O, GPIO, PWR
1 – AES 3,4 Input (+)
2 – AES 1,2 Input (+) 
3 – AES 5,6 Output (+)
4 – AES 7,8 Input (+) 
5 – AES 5,6 Input (+) 
6 – EXT DC (-) Ground
7 – EXT DC (-) Ground
8 – LOGIC Output
9 – LOGIC Input
10 – +10V to 18V DC
11 – AES 3,4 Input (-) 
12 – AES 1,2 Input (-) 
13 – AES 5,6 Output (-)
14 – AES 7,8 Input (-) 
15 – AES 5,6 Input (-)
The D-Sub connector provides 8 channels of balanced 
AES input, 2 channels of AES outputs, GPIO and External 
DC powering and is therefore ideal as a single umbili-
cal connection between the 788T and an external digital 
mixer. Mates with Sound Devices XL-88.
788T/788T-SSD User Guide and Technical Information
164
v. 3.02
Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.
Specifi
cations
12
