Installation guide
Crestron DM-TX-200    DigitalMedia™ CAT Transmitter 200 
Uploading and Upgrading 
Crestron recommends using the latest programming software and that each device 
contains the latest firmware to take advantage of the most recently released features. 
However, before attempting to upload or upgrade it is necessary to establish 
communication. Once communication has been established, files (for example, 
firmware) can be transferred to the device. Finally, program checks can be 
performed (such as changing the device ID or creating an IP table) to ensure proper 
functioning. 
Establishing Communication 
Use Crestron Toolbox for communicating with the DM-TX-200; refer to the 
Crestron Toolbox help file for details. There is a single method of communication: 
indirect communication. This can be accomplished by using the DM-TX-200 with a 
DM switcher (sold separately) or by using the DM-TX-200 in a standalone setup 
with a DM-RMC-100 (sold separately). 
Via a DM Switcher 
Indirect Communication via a DM Switcher 
Ethernet
or USB
DMNet
DM Switcher
PC Running
Crestron Toolbox
DM-TX-200
DM-TX-200 connects to DigitalMedia switcher via DMNet. 
NOTE: In the SIMPL™ Windows program, when the DM-TX-200 is dropped onto 
an input card of a DM switcher, its IP ID is assigned automatically and does not 
require additional programming or configuration. Use the information below when 
the DM-TX-200 is dropped directly into an Ethernet slot on the control system in 
SIMPL Windows, without a DM switcher. 
Via a DM-RMC-100 
Indirect Communication via a DM-RMC-100 
Ethernet
DMNet
DM-RMC-100
PC Running
Crestron Toolbox
DM-TX-200
The DM-TX-200 connects to PC via Ethernet: 
1.  Confirm Ethernet connection between DM-RMC-100 and PC. If connecting 
through a hub or router, use CAT5 straight through cables with 8-pin RJ-45 
connectors. Alternatively, use a CAT5 crossover cable to connect the two 
LAN ports directly without using a hub or router. 
2.  By default, DHCP is enabled. Use the Device Discovery Tool in Crestron 
Toolbox to find the IP address of the DM-TX-200. To change the IP 
Operations & Installation Guide – DOC. 6741C  DigitalMedia™ CAT Transmitter 200: DM-TX-200 • 19 










