xControl External Control Expander

  • Expanded External Control for Composer-enabled DSPs
  • Analog / Logic Control Inputs | Logic Outputs | RS-232
  • Flexible 1/2 Rack Form Factor
  • Powered Via PoE (Switch or Injector)

External Control Plus.  Designed for use with Radius, Prism, Edge, and Solus NX DSPs. Especially useful in conferencing and paging applications. Each of the 8 flexible analog control inputs may be configured for 1 potentiometer or 2 switches. The 16 logic outputs may be used to drive LEDs, trigger external relays, or control contact closure ports. Either of the 2 RS-232 ports may be configured to issue or receive commands to or from third-party control systems. Utilizing PoE, xControl may be mounted where convenient and connected to a control network using a single cable. The half-rack form factor conserves rack space, or if preferred, the xControl may be surface mounted at point-of-use.

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External Control Inputs

Number of External Control Inputs 8 to 16 total; each configurable to accommodate 1 potentiometer or 2 closures for a maximum of 8 potentiometers or 16 closures.
Connectors 3.81 mm terminal blocks.
Reference Voltage 3.3 VDC
Recommended Potentiometer 10k Ohms linear taper.

Logic Outputs

Number of Logic Outputs 16; each capable of driving an LED directly, triggering an external relay or sinking external voltage/current. Low (0 VDC) when active, pulled high (5 VDC) when inactive.
Connectors 3.81 mm terminal blocks.
Maximum Output Voltage 5 VDC
Maximum Output Current 10 mA
Maximum External Power Supply Voltage 24 VDC
Maximum External Power Supply Current Sinking 50 mA

RS-232 Ports

Number of RS-232 Ports 2.
Connectors 3.81 mm terminal blocks.
RS-232 Port Parameter 57.6 kbaud (default), 8 data bits, 1 stop bit, no parity, no flow control wired straight-through, only pins 2, 3, and 5 required.


Ethernet Cable Standard CAT5/6, maximum device-to-device length = 100 meters.

Mechanical Data

Space Required Half rack unit (WDH: 20.83 cm x 22.86 cm x 4.37 cm / 8.2 in. x 9 in. x 1.72 in.) Depth does not include connector allowance. Allow at least 3 inches additional clearance for rear panel connections. Additional depth may be required depending upon your specific wiring and connections.
Electrical PoE IEEE 802.3af Class 1, 6 Watts maximum. No line voltage switching required.
Ventilation Maximum recommended ambient operating temperature is 30 C / 86 F. Ensure that the left and right equipment sides are unobstructed (5.08 cm, 2 in. minimum clearance). The ventilation should not be impeded by covering the ventilation openings with items such as newspapers, tablecloths, curtains, etc.
Shipping Weight 2.0 kg (4.4 lbs.)
Certifications or Compliance UL 60065, cUL 60065, IEC 60065, EN 55103-1, EN 55103-2, FCC Part 15, RoHS.

Architect and Engineer Specifications: SymNet xControl.

The half rack device shall provide logic I/O expansion for a SymNet system with eight to sixteen total external control inputs, sixteen logic outputs, and two RS-232 ports.

Each external control input shall be configurable to accommodate one potentiometer or two closures for a maximum of eight potentiometers or sixteen closures. Each logic output shall be capable of driving an LED directly, triggering an external relay or sinking external voltage/current, low (0 VDC) when active, pulled high (5 VDC) when inactive.

All logic I/O and RS-232 connections shall be accessed via rear panel 3.81 mm terminal block connectors.

System connection for configuration and communication shall be via the device’s rear panel Ethernet connector.

A designer software application shall be provided that operates on a Windows computer, with network interface installed, running Windows® XP or higher operating system.

The front panel shall include indicators for POWER, ETHERNET and ACTIVITY.

The device shall be powered over Ethernet (PoE) by an IEEE 802.3af Class 1 standard compliant switch or the included injector. The device shall meet UL/CSA and CE safety requirements and comply with CE and FCC Part 15 emissions limits. The device shall be RoHS compliant. The chassis shall be constructed of cold rolled steel, and may be surface mounted or mount into a standard 19” 1U EIA rack using the included rack mount kit. The device shall be a Symetrix SymNet xControl.

Installed Sound DSP

  • Symetrix Edge DSP
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