Specifications
Installation and Operation Manual Chapter 1 Introduction
IPmux-8/16 Ver. 6.00 Overview 1-5
The CT3 module provides:
• Increased IPmux-16 T1 capacity - up to 56 T1 channels (28 × 2) on a single
chassis – two CT3 modules in the same chassis
• Transmission of up to 28 bundles per CT3 card – each bundle containing an
unframed T1 as per G.703
• Point-to-point and point-to-multipoint topologies
• Local cross connect between CT3 internal T1 channels
• External/Internal loop functions on CT3/internal T1 levels
• Detection of LOF (per ESF/SF framing) on the CT3 internal T1 channels (log file
only).
IP
The data stream coming from the TDM ports is converted into IP packets and
transferred over the Fast Ethernet port, and vice versa.
The TDM bytes are encapsulated in a UDP frame that runs over IP and over
Ethernet.
The number of TDM bytes in an IP packet is configurable for throughput / delay
tradeoff.
A destination IP address should be configured for each TDMoIP flow, i.e. E1, T1,
E3, T3, CT3 or timeslot bundle (see
Multibundling). IP ToS field support can be
configured for IP Level Priority.
4-Port Ethernet Module
The 4-port Ethernet module of IPmux-8/16 includes four Fast Ethernet ports: one
network port (10BaseT, 100BaseTx or 100BaseFx) and three user ports
(10/100BaseT).
Network Ethernet Ports
The IPmux-8/16 Ethernet network ports operate in half or full duplex, providing
autonegotiation and auto-crossover. The network ports support QoS, tagged
frames (IEEE 802.1p), ToS (IPv4), RMON statistics, tagging/untagging per port or by
IEEE 802.3q VLAN ID.
User Ethernet Ports
The IPmux-8/16 Ethernet user ports operate in half or full duplex, providing
autonegotiation and auto-crossover. The network ports support QoS (determined
by port), tagged frames (IEEE 802.1p), TOS (IPv4), RMON statistics,
tagging/untagging per port or by IEEE 802.3q VLAN ID, double tagging per port,
ingress rate limiting per port (128 kbps to 64 Mbps).
Transparent Bridging
Two 4-port Ethernet modules support up to two totally separated transparent
bridges. The bridges performs automatic learning and aging, supporting up to
2000 MAC addresses per Ethernet module with VLAN 802.1p transparency.