Toa S-D7802 - Manual (Page 26)

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11.2. Termination Impedance Setting of the word Clock Input
Input impedance for the coaxial cable input of the external word clock can be selected.
Use rear-mounted terminal selector switch to select "Open" or "75 Ω."
Notes
• When using the word clock distributor
Connect the word clock signal to be output from the word clock generator to the receiver's word clock input
terminal in a one-to-one relationship via the dedicated distributor.
In this event, set each receiver's terminal selector switch to "75 Ω."
Word clock
generator
S-D7802 (1)
Word clock input
TERM: 75 Ω
S-D7802 (2)
Word clock input
TERM: 75 Ω
S-D7802 (3)
Word clock input
TERM: 75 Ω
Word clock
distributor
BNC coaxial cable
• When making a daisy chain connection
In the case of a daisy chain connection, signals from the word clock generator are distributed to the next
device one after another by using the commercially available T-shaped BNC connectors.
In this event, set the terminal switch of only the last connected receiver to "75 Ω" and other receivers' switches
to "OPEN."
This distribution connection method is not recommended for the large system.
TERM
75Ω OPEN
OCK
Word clock
generator
S-D7802 (1)
Word clock input
TERM: OPEN
S-D7802 (2)
Word clock input
TERM: OPEN
S-D7802 (3)
Word clock input
TERM: 75 Ω
T-shaped BNC connector