How to wire ext stop for TEsysU if controlled over communication?

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External stop (NC contact) must be wired between the communication module output OA1 and TesysU coil. For this purpose it is not possible to use pre-wired terminal block, because the connection between communication module and TesysU coil must be done manually. Wiring will be done:
comm. module.OA1 - ext stop NC contact - base.A1
comm. module.COM - base.A2
We recommend to use LUB12 or LUB32 instead of LUB120 or LUB320 due to existence of A1,A2 terminals (open-style).