BusinessPhone Communication Platform 5.1
Installation Instruction ASB 150 02 > Boards for ASB 150 02

## BTU-C (ROF 157 5111/_)

- BTU-C (ROF 157 5111/1)
  Features eight incoming trunk lines with DDI
- BTU-C (ROF 157 5111/2)
  4 DC-loop tie lines

The first four individuals can also be used for the outgoing traffic as well as for music source inputs.

#### Connections to BTU-C

Revision: E © Ericsson Enterprise 2003