JVC DOME TYPE CAMERA TK-C676 - Manual (Page 12)

E-12
Switch Settings
Set the switches on the Ceiling Mount before installing the camera.
Settings vary according to configuration of the system used.
Ⅵ Setting switches
● Switch 7
This switch must be set to OFF.
● RX TERM (Switch 8)
This switch sets whether or not the section between control
signal terminals RX + and RX – is to be terminated (with a
resistance of 110
Ω.)
When the system in which this camera is used is a multi-
drop system (RS-485 system), set only the camera located
at the extreme end of the control signal cables to “Termi-
nated” and set the other cameras to “Open”.
● Switches 1, 2
These switches must be set to OFF.
● DISP (Switch 3)
This switch selects whether “MANUAL” is displayed in the
screen when a remote control unit is used to move the cam-
era manually (to a position other than those preset.).
Switch 4 PROTOCOL (1)
Point to point OFF
Multi drop (when using the RM-P2580) ON
(Initial set: OFF)
PROTOCOL (2) Switch 5
Duplex (when using the RM-P2580) OFF
Simplex ON
(Initial set: OFF)
SYNC Switch 6
INT OFF
LL ON
(Initial set: OFF)
(LL mode : 50 Hz area only)
● SYNC (Switch 6)
When this switch is set to ON, the vertical sync of the camera
becomes locked to the frequency of the AC power line.
● PROTOCOL (2) (Switch 5)
Set this switch according to the communication protocol used
when controlling the cameras.
When set to Multi drop, be sure to set the Machine ID of each camera.
● PROTOCOL (1) (Switch 4)
Selects whether a single camera or multiple cameras are con-
trolled in a system.
Set PROTOCOL(1) to Multi drop when connecting multiple
cameras in series.
1 2 3 4 6 7 8 5
O F F
Switch 1
Switch 2
Switch 3
DISP
Switch 4 PROTOCOL(1)
Switch 5 PROTOCOL(2)
Switch 6 SYNC
Switch 7
Switch 8 RX TERM
Reserved
This switch must be set “OFF”
Reserved
This switch must be set “OFF”
Connections & Installation
Switch 3 MANUAL
Displayed
Not displayed
(Initial setting: Displayed)
Switch 8 RX Termination
Terminated (110 Ω) ON
Open OFF
(Initial setting: Terminated (110 Ω))