Product details:

Foxboro ( by Schneider Electric )
Product No : P0926GV
Product type : FBM231 PSS 31H-2Z31 Field Device System Integrator Module
Interface : Four serial I/O communication ports interface four direct connect RS-232, RS-422 dual-ported devices or up to 64 dual-ported devices via four RS-485 buses (Up to 16 devices per port). Each port is a dual-logical port to dual-ported devices.
Input Voltage Range (Redundant) : 24 V dc +5%, -10%
Input Consumption : 7 W (maximum) each module
Mounting : The FBM231 mounts on a Modular Baseplate. The Modular Baseplate can be mounted horizontally or vertically on a DIN rail, or mounted horizontally in a 19-inch rack using a mounting kit. Refer to PSS 31H2SBASEPLT for details. The TA has a combination foot that supports 32 or 35 mm DIN rail mounting.
Operating temperature : -20 to +70°C (-4 to +158°F)
Dimensions (LxWxH) : 10.4cm x 4.5cm x 11.4cm
Weight : 0.284 Kg