7705 SAR Interfaces
38
Interface Configuration Guide
3HE 11011 AAAC TQZZA Edition: 01
The 16-port T1/E1 ASAP Adapter card supports fractional T1/E1 on network ports
configured for PPP. Fractional T1/E1 allows a portion of the link to be used for traffic
(up to the full link bandwidth).
DS1 ports on the 16-port T1/E1 ASAP Adapter card, version 2, can be configured for
either B8ZS (bipolar with eight-zero substitution) zero code suppression or AMI
(alternate mark inversion). B8ZS and AMI are line coding techniques.
3.1.3.2.2 32-port T1/E1 ASAP Adapter Card
On the 32-port T1/E1 ASAP Adapter card, channelization is supported down to the
DS0 level. To change port types, all ports must first be shut down. The ports can be
configured for DS1 (T1) or E1 operation. All ports on the card must be either T1 or
E1; there cannot be a mix of the two types. When the first port is configured on a card,
all other ports on the card must be set to the same type.
The 32-port T1/E1 ASAP Adapter card supports fractional T1/E1 on network ports
configured for PPP. Fractional T1/E1 allows a portion of the link to be used for traffic
(up to the full link bandwidth).
DS1 ports on the card can be configured for either B8ZS (bipolar with eight-zero
substitution) zero code suppression or AMI (alternate mark inversion). B8ZS and AMI
are line coding techniques.
3.1.3.2.3 2-port OC3/STM1 Channelized Adapter Card
On the 2-port OC3/STM1 Channelized Adapter card, channelization is supported
down to the DS0 level. To change port types, all ports must first be shut down. The
ports can be configured for DS1 (T1) or E1 channelization. All ports on the card must
be either SONET or SDH; there cannot be a mix of the two types. When the first port
is configured on a card, all other ports on the card must be set to the same type.
The 2-port OC3/STM1 Channelized Adapter card also supports DS3 channelization.
3.1.3.2.4 4-port OC3/STM1 / 1-port OC12/STM4 Adapter Card
The 4-port OC3/STM1 / 1-port OC12/STM4 Adapter card can be configured to be in
4-port OC3/STM1 mode or 1-port OC12/STM4 mode (using the mda-mode
command).
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