System information

Reference Guide Crestron 3-Series Control Systems
26 • 3-Series Control Systems Reference Guide – DOC. 7150A
Passthrough Mode
NOTE: This procedure requires the use of Crestron Toolbox.
Passthrough mode allows a control system to act as a conduit to a device that is
serially connected to the Crestron system. Crestron Toolbox can then serially
communicate with a controlled device separate from the control system program.
This aids in troubleshooting a serial device that is connected to the network by
isolating the device from the system or the program running in the control system
without moving any wiring.
NOTE: Before using Passthrough mode to connect to a serial port on an
Ethernet device, the IP ID and associated IP address of the Ethernet device must
be listed in the control system's IP table.
Passthrough mode cannot be used with Cresnet devices that utilize slots in the
SIMPL Windows programming symbol. For example, the COM port on the
C2N-CAMIDSPT is designated as Slot 2, Port A. Passthrough mode cannot be used
to access this COM port. The COM ports on the ST-COM are not within slots and
can use passthrough for these COM ports. The “System Views” window of SIMPL
Windows shows the programmer if a COM port is a port on a device or a port within
a slot on a device.
Use the following procedure to enter Passthrough mode for connecting to serial
devices:
1. Open Crestron Toolbox and establish a serial connection to the 3-Series
Control System as described in “Establishing Communications with the
Control System” on page 6.
2. Open the Address Book. If the device has not already been added, add an
address for the control system:
• Select Indirect for the Connection Type.
• Select the location for the Device is at field. Refer to the illustration on
the following page for visual guidance.