Edwards COM-3-RC
Edwards COM-3-RC
Out of stock; call for lead time
The Edwards COM-3-RC is reconditioned stock of the COMM-3, a communications card that plugs into a CM1(N), RMDP-1N, or CM2(N) control module motherboard to give its CPU an RS-485 network port and an RS-232 port. The RS-485 side carries network traffic between control modules with configurable Class A or Class B wiring, while the RS-232 side is used to download programming data or connect a local printer or video annunciator; the card also houses the system's clock.
Key Features
- Required communications card for CM1(N), RMDP-1N, and CM2(N) control modules
- RS-485 network port, configurable for Class A or Class B wiring
- RS-232 port for program downloads, printers, or video annunciators
- Contains the control module's system clock
Technical Specifications
- RS-485 Wiring: Style 7 (Class A) or Style 4 (Class B)
- RS-485 Speed: 9600 baud max
- Max Line Resistance: 100 ohms; Max Line Capacitance: 0.44 uF
- Max Electrical Drops: 32 per RS-485 data line
- RS-232 Wiring: Style 4 (Class B), 4800 baud max
Recently Viewed
Why Protegis?
Thousands of Parts
We source our legacy parts from multiple sources, to make sure you can keep your system running.
Protegis Guarantee
Reconditioned parts are backed by our one year, no-hassle warranty with free replacement or repair.
Multiple Brands
You can search from our extensive list of manufacturers to find the right part for your system.
