psf2115 ETC-unknow, psf2115 Datasheet - Page 207
psf2115
Manufacturer Part Number
psf2115
Description
Isdn Adapter Circuit Ipac
Manufacturer
ETC-unknow
Datasheet
1.PSF2115.pdf
(317 pages)
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Semiconductor Group
3.6.5.2
The transition criteria used by the IPAC are described in the following sections. They are
grouped into:
C/I Commands
AR
ARL
AI
AIL
DC
DR
RES
RSY
TM1
TM2
–C/I commands
–Pin states
–Events or the S/T-interface.
Activation Request. This command is used to start an exchange initiated
Activation request loop. The IPAC is requested to operate an analog loop-
Activation Indication. Confirms that the U-interface is fully transparent, on
Activation Indication loop.
Deactivation Request. Initiates a complete deactivation from the exchange
side by transmitting INFO 0. Unconditional command.
Please refer to section 3.6.3.2 (C/I commands) for details.
INFO 2 is transmitted consequently by the IPAC.
Test Mode 1. Transmission of single pulses on the S/T-interface. The pulses
are transmitted with alternating polarity at a frequency of 2 kHz. TM1 is an
unconditional command.
Test Mode 2. Transmission of continuous pulses on the S/T-interface. The
pulses are sent with alternating polarity at a rate of 96 kHz. TM2 is an
unconditional command.
activation.
back close to the S/T-interface.
D-channel data transfer is allowed.
Deactivation Confirmation. Transfers the NT into a deactivated state in which
it can be activated from a terminal (detection of INFO 0 enabled).
Resynchronizing. The U-interface has not obtained or lost synchronization.
Intelligent NT Mode Transition Criteria
207
Operational Description
PSB 2115
PSF 2115
11.97
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