the 2602 mainstreet dtu uses bidirectional drivers, so signal directions change depending on whether the dtu is configured as a dce or dte.
tables a-1 to a-5 summarize all interface, gender, clocking, cable and connector configurations supported. for example, in table a-3, to connect a 2603 mainstreet dtu (dte) to a piece of dce equipment with an m34 male connector, use the cable with part number 90-1538-01, which provides an m34 female connector. for more information on cables, refer to newbridge application note 01nan0002.
1. this column gives the gender presented to the attached data device.
2. use a straight-through db25 male to db25 female cable.
3. this column gives the type of physical connector presented to the attached data device.
1. this column gives the' gender presented ot the attached data device.
2. this column gives the type of physical connector presented to the attached data device.
1. this column gives the gender presented to the attached data device.
2. this column gives the type of physical connector presented to the attached data device.
1. this column gives the gender presented to the attached data device.
2. ready-made cables are not available; cables must be constructed using a straight-through rj45-to-rj45 cable and a configurable rj45-to-db25 headshell.
3. this column gives the type of physical connector presented to the attached data device.
1. this column gives the gender presented to the attached data device.
2. ready-made cables are not available; cables must be constructed using a straight-through rj45-to-rj45 cable and a configurable rj45-to-db25 headshell.
3. this column gives the type of physical connector presented to the attached data device.
to meet emc regulations, cables connected to the device ports on the 2602 mainstreet dtu must be shielded.
figures a-1 to a-18 identify the pin and signal assignments for the device port and the connector presented to your equipment. arrows indicate signal direction with respect to the dtu:
1 output drivers (generators) have an arrow away from the port
2 input drivers (loads) have an arrow towards the port
3 grounds (common returns) have only a signal name (no arrow)
4 unused pins have neither a name nor an arrow (leave unconnected)
