#html-body [data-pb-style=EMCUVPO]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}Teltonika | TRB255 | Dual SIM M2M LTE Cat-M1/NB-IoT Industrial Gateway  Industrial M2M Gateway Industrial all-in-one M2M LTE CATM1/NB-IoT/EGPRS gateway, equipped with multiple inputs/outputs, RS232, RS485, and Ethernet interfaces to be used universally in various M2M applications. FEATURES Connectivity: 4G/LTE (Cat-M1), NB-IoT, 2G Dual SIM: With auto-failover, backup WAN and other switching scenarios Serial Ports: RS232/RS485 serial communication interfaces I/O: Multiple Inputs and Outputs for remote monitoring and control CONTENTS Gateway TRB255 9W PSU included 1 x Mobile antenna (swivel, SMA male) 1 x GNSS antenna (adhesive, SMA male, 3 m cable) 16-pin terminal block 1 x hex key Ethernet cable (1.5 m) QSG (Quick Start guide) RMS Flyer ACCESSORIES (Not included) Power Supply Unit (Alternative): TT.PR2FK20M | Power cable with 4-way screw terminal  TT.PR2PL15B | Power cable with 4-way open wire TT.PR2PD01B | 4-Pin to barrel socket adapter TT.PR2AM20M | Automotive Power Supply Unit 20V TT.PR PR3PRAU6 | 2-Pin Power Supply 9W TT.PR3PDNP0 | DIN Rail Power Supply Unit 20W Mounting Options: TT.PR5MEC12 | Surface mounting KIT TT.PR5MEC11 | Compact DIN Rail KIT TT.PR5MEC00 | Large DIN Rail KIT TT.PR5MEC22 | Surface Clip Holder Kit