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SigTEL 8 Line Expansion Unit (ECU-8S)
Product code: SigTEL 8 Line Expansion Unit (ECU-8S)
Can be connected to an ECU-4 or ECU-8 master controller to increase its line capacity to 12 or 16 lines respectively
Does not require a separate mains supply or batteries
Can be semi-flush mounted using the AFP385 bezel
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