SigTEL Network Communication Card

• An optional system expansion device.
• Allows up to 14 ECU-4, 8, 16 or 8NT SigTEL controllers to be interlinked.
• One card required per networked SigTEL controller.
• Allows systems of up to 224 lines (14 x ECU-16 controllers) to be easily set-up.
• Any ECU-4, ECU-8 or ECU-16 can take control of the system at any time by the input of a special code.
• Note that for networked systems that do not require multiple control points, controllers without handsets are available (ECU-8NT).
• IMPORTANT: To network a controller that has an optional ECU-224 desk controller fitted use an ECU723 interface/network card instead of an ECU722