National Instruments Deterministic Ethernet Expansion Chassis NI 9144 User Manual

Also see for NI 9144: User guide User manual Getting started guide

National Instruments Deterministic Ethernet Expansion Chassis NI 9144 User Manual Manual pdf 4 page image

NI 9144 User Guide and Specifications 4 ni.comCaution Substitution of components may impair suitability for Class I, Division 2.Caution For Zone 2 applications, install the system in an enclosure rated to at least IP 54as defined by IEC 60529 and EN 60529.Special Conditions for Hazardous Locations Usein EuropeThis equipment has been evaluated as Ex nA IIC T4 equipment underDEMKO Certificate No. 07 ATEX 0626664X. Each chassis is markedII 3G and is suitable for use in Zone 2 hazardous locations, in ambienttemperatures of –40 ≤ Ta ≤ 70 °C.Special Conditions for Marine ApplicationsSome chassis are Lloyd’s Register (LR) Type Approved for marineapplications. To verify Lloyd’s Register certification, visit ni.com/certification and search for the LR certificate, or look for the Lloyd’sRegister mark on the chassis.Mounting the NI 9144 ChassisYou can mount the chassis in any orientation on a 35 mm DIN rail or on apanel. Use the DIN rail mounting method if you already have a DIN railconfiguration or if you need to be able to quickly remove the chassis. Usethe panel mount method for high shock and vibration applications.Caution Your installation must meet the following requirements for space and cablingclearance:• Allow 25.4 mm (1 in.) on the top and the bottom of the chassis for air circulation.• Allow 50.8 mm (2 in.) in front of C Series I/O modules for cabling clearance forcommon connectors, such as the 10-terminal, detachable screw terminal connector, asshown in Figure 2.