tfra08c13 ETC-unknow, tfra08c13 Datasheet - Page 148

• Manufacturer Part Number: tfra08c13
• Description: Tfra08c13 Octal T1/e1 Framer
• Manufacturer: ETC-unknow

TFRA08C13 OCTAL T1/E1 Framer
Framer Register Architecture
Automatic AIS to the System and Automatic Loopback Enable Register
The default value of this register is 00 (hex).
Table 127. Automatic AIS to the System and Automatic Loopback Enable Register (FRM_PR19) (Y73)
Transmit Test Pattern to the Line Enable Register
This register enables the transmit framer to transmit various test signals to the line interface. The default value of
this register is 00 (hex). Note that between enabling the transmission of line loopback on and off codes, this register
must be set to 00 (hex) (i.e., to enable transmission of line loopback on code and then off code, write into this reg-
ister 10 (hex), then 00 (hex), and finally 20 (hex)).
Table 128. Transmit Test Pattern to the Line Enable Register (FRM_PR20) (Y74)
* To transmit test signals using this register, registers FRM_PR69 and FRM_PR70 must be set to 00 (hex).
148
Bit
Bit
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
ASAISTMX
AFDPLBE
TUFAUXP
AFDLLBE
TLLBOFF
TLLBON
Symbol
Symbol
TUFAIS
ALLBE
TICRC
ASAIS
TSAIS
TPRS
TQRS
TLIC
—
—
Automatic System AIS. A 1 transmits AIS to the system whenever the receive framer is
in the loss of receive frame alignment (RLFA) state.
Automatic System AIS CEPT CRC-4 Timer Expiration. A 1 transmits AIS to the sys-
tem after the CRC-4 100 ms or 400 ms timer expires. AIS is transmitted for the duration
of the loss of CRC-4 multiframe alignment state.
Reserved. Set to 0.
Transmit System AIS. A 1 transmits AIS to the system.
Automatic Line Loopback Enable. A 1 enables the framer section to execute the DS1
line loopback on or off commands without system intervention.
Reserved. Set to 0.
Automatic FDL Line Loopback Enable. A 1 enables the framer section to execute a
line ESF FDL loopback on or off command without system intervention.
Automatic FDL Payload Loopback Enable. A 1 enables the framer section to execute
a payload ESF FDL loopback on or off command without system intervention.
Unframed AIS to Line Interface (All Ones Pattern).
Unframed AUXP to Line Interface in CEPT Mode (Alternating 010101 Unframed
Pattern).
Transmit Pseudorandom Signal to Line Interface (2
Transmit Quasi-Random Signal to Line Interface (2
Transmit Framed Payload Line Loopback On Code: 00001.
Transmit Framed Payload Line Loopback Off Code: 001.
Transmit Line Idle Code of FRM_PR22. When this bit = 1, the line idle code of
FRM_PR22 is transmitted to the line in all time slots .
Transmit Inverted CRC.
(continued)
*
Description
Description
20
15
– 1) ( ANSI T1.403).
– 1).
Preliminary Data Sheet
Lucent Technologies Inc.
Lucent Technologies Inc.
October 2000