Motorola mT2a - PowerBroadband EthernetXD Switch Guía de usuario descargar pdf (Pagina 47)

Appendix A

Motorola, Inc. 549453-001-00-a Page 47 of 51

The rear of the switch has two RJ21 connectors; one for the LINE (also called PBX, PSTN, or System) connections

and one for PHONE (also called House or Station) connections. The connector is wired as a 50 pin telco connector,

as follows:

RJ21 Line Connectors

Pin 26 = line 1 Tip

Pin 1 = line 1 Ring

Pin 27 = line 2 Tip

Pin 2 = line 2 Ring

Pin 50 = line 25 Tip

Pin 25 = line 25 Ring

RS-232 console port

Pin 1 Unused Pin 6 Unused

Pin 2 TXD – transmit data Pin 7 Unused

Pin 3 RXD – receive data Pin 8 Unused

Pin 4 Unused Pin 9 Unused

Pin 5 GND – signal ground

1 2 ... 42 43 44 45 46 47 48 49 50 51

Sin comentarios

Motorola mT2a - PowerBroadband EthernetXD Switch Guía de usuario Pagina 47