Optional) Connecting Linkage Cables Between The Equipment Room Fire Extinguishing System And Access Actuator - Huawei FusionModule2000 Installation Manual

FusionModule2000 Smart Modular Data Center
Installation Guide (2000 mm High Cabinets, Dual-Row
Aisle Containment, 208 V)
Figure A-50 Preparing an RS485 monitoring cable for the ECC collector
Preparing a Dry Contact Monitoring Cable
The method for preparing a dry contact monitoring cable is similar to the method for
preparing an RS485 monitoring cable. Prepare cord end terminals on both ends of each
required cable core based on the number of dry contacts.
A.10 (Optional) Connecting Linkage Cables Between the
Equipment Room Fire Extinguishing System and Access
Actuator
After linkage cables are connected between the equipment room fire extinguishing system and
access actuator, the access actuator opens data center doors when the fire extinguishing
system generates an alarm signal.
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Connect fire alarm signal cables to the DI– and DI+ pins at the AI/DI_1 or AI/DI_2 port on
the access actuator. The following figure uses connection to the AI/DI_1 port as an example.
Issue 01 (2017-07-30)
Fire alarm signals are dry contact signals generated by the fire extinguishing system
selected by the customer.
Fire alarm signals are valid only when the dry contact is closed.
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