PEB2096 SIEMENS [Siemens Semiconductor Group], PEB2096 Datasheet - Page 39

• Manufacturer Part Number: PEB2096
• Description: Octal Transceiver for UPN Interfaces OCTAT-P
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

“available“),
C/I = 1100
T = 1 indicates to the terminal (via the U
T = 0 indicates that the HDLC controller can not send data or has to abort sending data.
Table 2
Indications
Indication (upstream)
Timing required
(to activate IOM-2)
Resynchronization
(loss of framing)
Activate request
U only activation
indication
Activate indication
Deactivate indication
In PBX applications with decentral D-channel handling, all D-channels can be handled
by a D-channel arbiter of the ELIC, PEB 20550; one signalling controller in multiplexer
mode (SACCO-A) can be used for up to 32 ISDN subscribers. A terminal is allowed to
send data only when the signalling controller is available and the subscriber was
selected by the arbiter. The command
C/I = 1000
controller is allocated to an other terminal. The addressed D-channel is “blocked“.
The OCTAT-P controls the terminal transmitter (e.g. ISAC-P TE) accordingly. It
translates the information whether the D-channel is “available” or “blocked” by setting the
T-bit on the U
Note: The two codes (C/I = 1000
Semiconductor Group
in a state INFO 4 transmission.
send data.
H
H
indicates that the D-channel currently can not be used as the signalling
indicates to the OCTAT-P that the selected D-channel can be used (is
PN
interface.
Abbr. Code Remarks
TIM
RSY
AR
UAI
AI
DI
H
and 1100
0000
0100
1000
0111
1100
1111
39
PN
Deactivated state, activation from the line
not possible
Receiver is not synchronous
Info 1w received
Info 1 received synchronous receiver
Layer-1 fully activated
Info 0 or DC received after deactivation
request
H
) can only be used when the OCTAT-P is
transmitter) that it’s HDLC controller can
PEB 2096
01.96