This guide details cabling requirements, connector pinouts, and product codes for connecting the Motorola 3512 DSU/CSU to DTEs, leased lines, dial lines…
This document serves as a reference guide for installing and cabling the Motorola 3512 Digital Service Unit/Circuit Switching Unit (DSU/CSU). It provides comprehensive tables listing specific product codes, cable lengths, and connector types required to connect the device to various Data Terminal Equipment (DTE), leased lines, dial lines, and Network Management Systems (NMS).
The guide includes detailed pinout information for DB25 and DB26 connectors used on Ports 1 through 4, as well as specific wiring diagrams for RJ48S connections to wall jacks. It also covers regulatory ordering information, such as Ringer Equivalence Numbers (REN) in the U.S. and Load Numbers in Canada, ensuring compliance with telecommunications standards.
| Port 1 Connector Type | DB25 |
|---|---|
| Ports 2-4 Connector Type | DB26 |
| U.S. FCC Registration Number | AT9USA-61595-DD-N |
| U.S. Ringer Equivalence Number (REN) | 0.2B |
| Canada Load Number for SLR | 4 |
EIA 232-C/D computer interface cables connected to a 3512 DSU/CSU must be braided, shielded cables with metal, shielded hoods.
The total REN should generally not exceed five.