What is ISO 4902 - Data communication of 37-pole DTE/DCE interface connector about?
ISO 4902 specifies the 37-pole connector and the assignment of contact numbers at the interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) where CCITT1) Recommendation V.24 together with Recommendations V.10 and V.11 are applicable.
ISO 4902 additionally provides the dimensions of the connector housing, as well as the recommended means of providing a locking device (latching block) and connector shielding.
Who is ISO 4902 - Data communication of 37-pole DTE/DCE interface connector for?
ISO 4902 on data communication of 37-pole DTE/DCE interface connector is useful for:
- Small scale automation industries   
- Large scale automation industries 
- IT industries 
- IT engineers 
- Software engineers  
- Network controlling companies   
- Transport companies 
- Manufactures cable adapters 37-pole DTE/DCE connector
Why should you use ISO 4902 - Data communication of 37-pole DTE/DCE interface connector?
The 37-pole connector is a component that terminates conductors for the purpose of providing connection and disconnection to a suitable mating component.
ISO 4902 provides DTE and DCE which implement V.10 electrical characteristics on all interchange circuits. This will help you to provide compatible interworking of V.10/ISO 4902 equipment with V.28/ISO 2110 equipment. The adaptation is associated solely with the V.10/ISO 4902 equipment so no retrofits or modifications are necessary for V.28/ISO 2110 equipment. ISO 4902 also defines the two basic receiver configurations. Category 1 receivers have both the A and B interface points accessible through the interface connector. Category 2 receivers have only the individual A½ interface points accessible through the interface connector with all B½ points connected together within the equipment and brought to a single common return circuit through the interface connector.
Overall, ISO 4902 provides guidance on finger clearance for equipment designers and guidance concerning possible interconnecting configurations applicable to V.28 interfaces.
