PEB 24911 H V1.3 Lantiq, PEB 24911 H V1.3 Datasheet - Page 103

• Manufacturer Part Number: PEB 24911 H V1.3
• Manufacturer: Lantiq

Specifications of PEB 24911 H V1.3

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Complete Loopback in EOC Transparent Mode (NT side):
4.4.1.4
Single channel loopbacks are always performed directly in the NT U-transceiver. No
difference between the B1-channel and the B2-channel loopback control procedure
exists. They are therefore discussed together.
• In EOC automode the B1-channel is closed by the EOC-command LB1. LB2 causes
• In EOC transparent mode single channels are closed by the corresponding MON-8-
Single channel loopbacks are resolved in the same manner as described for the
complete loopback, either by the EOC command RTN or by the MON-8 command
NORM. The NT may be deactivated while single loopbacks are closed.
Typical procedures for closing and opening single channel loopbacks are given in the
examples below. There the LT is always operated in EOC automode.
Data Sheet
–––>
<–––
<–––– MON-0
–––>
–––>
<–––– MON-0 RTN (FFH)
–––>
–––>
the channel B2 to loopback. Because these functions are latched, both channels may
be looped back simultaneously by sending first the command to close one channel
followed by the command for the remaining channel.
commands.
NT IOM
C/I AI
C/I AI
LBBD
MON-0
LBBD
MON-8
LBBD
MON-0 RTN (FF
MON-8
NORM
Loopback No.2 -
®
-2
(1100
(1100
(50
(50
(F1
(FF
H
H
H
H
H
)
)
)
)
)
B
B
) C/I AR
) C/I AI
Single Channel Loopbacks
LT IOM
MON-0
LBBD
MON-0 LBBD (50
MON-0 RTN
MON-0 RTN
®
-2
93
(1000
(1100
(50
(FF
(FF
H
H
H
H
)
)
)
)
B
B
) <––––
) ––––>
<––––
––––>
<––––
––––>
; U-interface is activated
; Close complete loop (EOC)
;
;
; Transmit acknowledgment
; Close complete loop in IEC
; Request to open all loops
; Receive acknowledgment
; Open all loopbacks
Operational Description
Request passes
transparently the NT
U-transceiver
PEF 24911
2001-07-16