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761190860L1-5B Section 61190860L1-5, Issue 2
Table 2. In-Band Commands
dnammoC
xeH
nrettaP
nrettaPyraniB
gnimrAhctiwS044C0000001000100011
elbanEtolS045C0000001010100011
elbasiDtolS046C0000001001100011
esaeleRhctiwSF44C1111001000100011
noitavitcAhctiwS
edoC
1eniL144C1000001000100011
2eniL244C0100001000100011
3eniL344C1100001000100011
4eniL444C0010001000100011
5eniL544C1010001000100011
6eniL644C0110001000100011
7eniL744C1110001000100011
Table 3. Out-Of-Band Commands
this condition will be locked until a remote
provisioning command orders the controller card to
switch the customer data back onto the main line, or a
signal failure of greater than 30 seconds occurs on the
protect Slot 8.
Protect Receive Path
The receive path is non-protected and transformer
coupled between the network and the customer. The
receive path is monitored for in-band or ESF
bit-patterned datalink messages. The receive path will
be a passive transmission path.
Protect Transmit Path
The transmit path is non-protected and transformer
coupled between the network and the customer. The
transmit path will be a passive transmission path.
In-Band Commands
The in-band commands are based on a 16-bit repeating
binary pattern. These patterns were selected to avoid
random data replication and yellow alarm generation.
In-band code qualifications involve receiving the codes
for 5 contiguous seconds. The in-band codes can be
transmitted using SF/ESF framing or unframed. See
Table 2 for in-band commands.
Out-of-Band Commands
The out-of-band commands are based on the ANSI
T1.403-1995 standard on T1 protection switching.
ANSI T1.403-1995, Table 4, specifies the command
and response messages for T1 protection switching.
Out-of-band code qualifications involve receiving the
codes for greater than 4 consecutive messages. See
Table 3 for out-of-band commands.
dnammoC
xeH
nrettaP
nrettaPyraniB
gnimrAhctiwSFF811111111100011000
elbanEtolSFF871111111100011110
elbasiDtolSFFA71111111101011110
esaeleRhctiwSFF621111111101100100
noitavitcAhctiwS
edoC
teseRFF421111111100100100
1eniLFF241111111101000010
2eniLFF441111111100100010
3eniLFF641111111101100010
4eniLFF841111111100010010
5eniLFFA41111111101010010
6eniLFFC41111111100110010
7eniLFFE41111111101110010