7705 SAR Interfaces
60
Interface Configuration Guide
3HE 11011 AAAC TQZZA Edition: 01
• 16-port T1/E1 ASAP Adapter card
• 32-port T1/E1 ASAP Adapter card
• T1/E1 ports on the 7705 SAR-M (variants with T1/E1 ports)
In access mode, PPP channels can be associated with n × DS0 channel groups.
Although multiple PPP channel groups are supported per T1/E1 port, all the channel
groups must be the same encapsulation type. For example, if one channel group on
a given port is set for ipcp encapsulation, another channel group on the same port
cannot be set to cem. If MLPPP channels are used, an MLPPP channel group fills
up an entire DS1 or E1 link.
The 2-port OC3/STM1 Channelized Adapter card supports ipcp encapsulation of
PPP/MLPPP packets for transport over an Ipipe.
The data ports on the 12-port Serial Data Interface card and the RS-232 ports on the
4-port T1/E1 and RS-232 Combination module provide transport between two data
devices. Each data stream that is transported across the network can be mapped
into a TDM pseudowire (Cpipe) for transport across an MPLS network. The other end
can terminate either on another 7705 SAR or a multiplexer capable of terminating the
pseudowire.
The 12-port Serial Data Interface card supports frame-relay encapsulation of data on
V.35 and X.21 channel groups for transport over a frame relay pseudowire (Fpipe)
or IP interworking pseudowire (Ipipe). The 12-port Serial Data Interface card also
supports ipcp and cisco-hdlc encapsulation of PPP and Cisco HDLC packets,
respectively, for transport over an Ipipe.
The 12-port Serial Data Interface card and the 4-port T1/E1 and RS-232
Combination module can also be part of a system architecture where a circuit
originates on an SDI port on the 7705 SAR, transits over an MPLS network, and
terminates on a 3600 MainStreet node connected to a 7705 SAR over a T1/E1
connection. In addition to the MPLS network functionality, the 12-port Serial Data
Interface card and the 4-port T1/E1 and RS-232 Combination modulec an also
operate in a TDM SAP-to-SAP mode where the other SAP can be another port on
the 12-port Serial Data Interface card or on a T1/E1 ASAP card.
Access ports on the 8-port Ethernet Adapter card, 8-port Gigabit Ethernet Adapter
card, 6-port Ethernet 10Gbps Adapter card, 10-port 1GigE/1-port 10GigE X-Adapter
card, the Packet Microwave Adapter card, and the xDSL ports on the 7705 SAR-Wx,
can transport traffic from sources such as e911 locators, site surveillance equipment,
VoIP phones, and video cameras. The Ethernet traffic is transported over the PSN
using Ethernet VLLs.
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