This standard is applicable to modular two-part connectors for printed wiring boards associated with equipment for telecommunication or electronic devices using similar techniques. The standard covers high-density connectors providing modular contact arrangements with signal contacts, power contacts, and options for special contacts (high current/coaxial/optical). Both fixed and free board mounted connectors have module sizes in multiples of 12 mm. Both are end-to-end stackable without loss of contact positions.

The objectives of this standard are to establish:

• dimensions of connectors for a metric equipment practice; the dimensions for height, width, and depth are based on a multiple grid of 0,5 mm in accordance with IEC Publication 60917-1;

• type designation;

• common features;

• dimensions;

• test program

General data

This standard defines modular two-part connectors, with assessed quality, for free and fixed boards. The connectors are based on a multiple grid of 0,5 mm, and configured with contacts spaced with a 2,0 mm pitch. The connectors are available as stackable modules and multimodules with n x 12 mm lengths and in 4 or more row configurations, with coding and optional special contacts:

- Performance levels: 1, 2, and 3

- Assessment levels: A and G

- Combination of performance levels and assessment levels: 1A, 2A, 2G, and 3A

Recommended method of mounting

A complete onnector consists of one or more connector modules or multimodules that are mounted stackable to each other, without loss of contact positions. Free board connector modules are mounted on the edge of the board and have female contacts with right-angle solder or press-in terminations.

Fixed board connector modules are mounted on the backplane and have male contacts with straight solder or press-in terminations. They have optional solderless wrap or rear plug-up possibilities.

Information on the availability of components qualified to this standard is given in the qualified product list.

Minimum and maximum number of contact cavities

The connector modules and multimodules provide four or more rows. Cavities for signal contacts can be fully or partially loaded. Cavities with power contacts are normally fully loaded.

The connector modules featuring cavities for special contacts are single-row, that can be individually loaded.

The possible number of contacts per connector module and multimodule.