Crystal Vision
Installation
TANDEM-200 User Manual R1.7
114
13/02/2008
RM08 BNC assignments
The four AES Audio I/O BNCs at the top of the RM08 are assigned functions as follows:
RM08 SDI 1
Sub Board
BNC 1
BNC 2
DIP2
AES1 I/P
AES2 I/P
DOP2
AES1 O/P
AES2 O/P / Ref I/P
RM08 SDI 2
Sub Board
BNC 3
BNC 4
DIP2
AES1 I/P
AES2 I/P
DOP2
AES1 O/P
AES2 O/P / Ref I/P
Note:
When DOP2 is used, BNC 2 can be used for the reference input for side 1 and BNC 4
can be used for the reference input for side 2.
10.2 Signal
earthing
Digital audio inputs are designed to have floating ‘signal low’ connections for cable
screens, with internal RC networks connected between cable screens and chassis ground.
This helps reduce the risk of high earth currents when AC power is induced into the cable,
or when an offset voltage exists between the product chassis and the local signal source
ground or chassis.
The internal RC network components fitted in the DIP2 and DIP2RS input cards are as
follows:
Component
Signal low (screen)
Chassis ground
1µF cap 10K ohm resistor
AES1 – , AES2 –
PCB GND
Note:
Video and audio output cable screens are normally hard-wired directly to local
chassis ground.
