Grass Valley NV8500 Series v.3.5 - Manual (Page 104)

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Router Control
Making Router Control System Connections
2 To establish communication with the primary control card, connect CTRL 1 in the PRI sec-
tion, using a DE9 cable, to the router control system.
The following lists the NV9000’s pin wiring for the DE9 connectors:
Other router control systems might have different connector pinouts.
3 If a secondary control card is installed, connect to the CTRL 1 connection in the SEC section
as described in steps 2.
4 If an alternate control system (e.g., for redundancy or dual control) is being used, make con-
nections as follows:
a Connect to the CTRL 2 connection in the PRI section, using a DE9 cable to the alternate
router control system. The pinout of the CTRL 2 connector is the same as for CTRL 1.
a Connect to the CTRL 2 connection in the SEC section, using a DE9 cable to the alternate
router control system. The pinout of the CTRL 2 connector is the same as for CTRL 1.
Control End Pins Router End
Ground 1 Ground
Rx– 2 Tx–
Tx+ 3 Rx+
Tx Common 4 Rx Common
N/C 5 N/C
Rx Common 6 Tx Common
Rx+ 7 Tx+
Tx– 8 Rx–
Ground 9 Ground