psf2115 ETC-unknow, psf2115 Datasheet - Page 80

• Manufacturer Part Number: psf2115
• Description: Isdn Adapter Circuit Ipac
• Manufacturer: ETC-unknow

Semiconductor Group
2.5
The common functions in all operating modes are:
– line transceiver functions for the S/T interface according to the electrical specifications
– conversion of the frame structure between IOM and S/T interface;
– conversion from/to binary to/from pseudo-ternary code;
– level detect.
– Mode specific functions are:
The wiring configurations in user premises, in which the IPAC can be used, are
illustrated in figure 24.
of CCITT I.430;
• receive timing recovery for point-to-point, passive bus and extended passive
• S/T timing generation using IOM timing synchronous to system, or vice versa;
• D-channel access control and priority handling;
• D-channel echo bit generation by handling of the global echo bit;
• activation/deactivation procedures, triggered by primitives received over the
• execution of test loops.
bus configuration;
IOM C/I channel or by INFO's received from the line;
Layer-1 Functions for the S/T Interface
80
Functional Description
PSB 2115
PSF 2115
11.97