Overview
The ST-COM is a Cresnet expansion module that provides two independent bidirectional RS-232/422/485 COM ports. Typical applications include control of display devices, switchers, lighting systems, security systems, and more. The ST-COM may be used to provide a serial control interface at a remote location, or may be rack mounted in the central equipment cabinet to expand the number of control system ports. Communication with the control system is via a single Cresnet connection.
The ST-COM is a device with two independent bidirectional serial ports that can support RS-232, RS-485, or asynchronous RS-422-based communication. The unit enables a system to overcome the distance limitations of serial communication. It can be used as part of the Cresnet system or SmarTouch STS to add control for additional serial devices such as video projectors or AV switchers.
Specification
Connectors
- COM A - B: (2) DB9 male, bidirectional RS-232/422/485 ports; Up to 115.2k baud; hardware and software handshaking support
- NET: (2) 6-pin RJ11 female, Cresnet slave ports, paralleled; Connect to Cresnet control network
- 12VDC: (1) 2.5mm barrel DC power jack; 12 Volt DC power input (PW-1205 power pack included)
Indicators
- PWR: (1) green LED, indicates power supplied from Cresnet network or local power pack
- NET: (1) amber LED, indicates communication with Cresnet system
- RXD, COM A – B: (2) red LEDs, indicate data signal reception at corresponding COM port
- TXD, COM A – B: (2) red LEDs, indicate data signal transmission at corresponding COM port
- RTS, COM A – B: (2) red LEDs, indicate corresponding COM port is ready to receive data if handshaking is enabled
- CTS, COM A – B: (2) red LEDs, indicate a “clear to send” signal from the device connected to each corresponding COM port
Power Requirements
- Power Pack:
- 0.5 Amp @ 12 Volts DC;
- 120 Volts AC, 60 Hz power pack, model PW-1205, included
- Cresnet Power Usage: 2.5 Watts (0.11 Amp @ 24 Volts DC) with no power pack connected
Environmental
- Temperature: 41° to 113°F (5° to 45°C)
- Humidity: 10% to 90% RH (non-condensing)
Enclosure
- Chassis: Metal, black finish
- Faceplate: Extruded aluminum, black finish with poly-carbonate label overlay
- Mounting: Freestanding or 1U 1/2-width 19-inch rack-mountable
Dimensions
- Height: 1.80 in (46 mm); 1.70 in (44 mm) without feet
- Width: 7.07 in (180 mm)
- Depth: 6.32 in (161 mm)
- Weight: 2.0 lb (0.93 kg)
VAT @ 20% INCLUDED IN PRICE - VAT INVOICE PROVIDED
£50 excluding VAT
VAT IS NOT PAYABLE BY PURCHASERS OUTSIDE OF THE UK
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