Each group connection tray has different structure to adapt for different testing condition.
Proximately located TUs within a predefined group may be connected when an initiating TU requests a group connection.
The common group control entity determines whether an aggregate of the connection value information and the further connection value information fulfils the group connection value condition.
The group control function is associated with at least one group connection value condition defined for the group of devices.
The method and system can include generating a group connection request for k respondents, where k is less than a total number of group members.
A group wiring patching device (40) which has built-in light emitting device (451) and filtering device (452) coupled with wire pair receptacle thereof.
The device is a freely adjustable, temporal multiplexing laser device having at least two lasers that are symmetrically configured such that the device is able to freely adjust the repetition rate of output beam pulses.