psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 82

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

Data Sheet
2.3.5.1.2 States
Reset, Pending Deactivation
State after reset or deactivation from the U
from the terminal side is possible starting from this state. A ‘DI’-command has to be
issued to enter the state ’Deactivated’.
Deactivated
The U
Activation is possible from the U
Power-Up
The U
running.
Pending Activation
Upon the command Activation Request (AR) the SCOUT-P(X) transmits the 2-kHz info
1w towards the network, waiting for info 2.
Level Detect
During the first period of receiving info 2 or under severe disturbances on the line the U
receiver recognizes the receipt of a signal but is not (yet) synchronized.
Synchronized
The U
procedure by transmission of info 1.
Activated
The U
procedure by transmission of info 3. All user channels are now conveyed transparently.
Analog Loop 3 Pending
Upon the C/l-command Activation Request Loop (ARL) the SCOUT-P(X) loops back the
transmitter to the receiver and activates by transmission of info 1. The receiver is not yet
synchronized.
Analog Loop 3 Synchronized
After synchronization the transmitter continues by transmitting info 3.
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interface is deactivated and the IOM-2 interface is activated, i.e. the clocks are
interface is deactivated and the IOM-2 interface is or will be deactivated.
receiver is synchronized and detects info 2. It continues the activation
receiver is synchronized and detects info 4. It concludes the activation
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interface and from the IOM-2 interface.
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interface by info 0. Note that no activation
PSB 21391
PSB 21393
Interfaces
2001-03-07
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