> nm 1ce1t1pri

The Cisco E1/T1 ISDN PRI Network Module's integrated channel service unit (CSU) provides direct connection to the Telecommunication s network thus allowing customers to consolidate customer premises equipment (CPE). This provides multifunction dial access aggregation routing functionality VPN and firewall security and other capabilities right inside the Cisco router in power branch office environments. The Cisco E1/T1 ISDN PRI network modules offer support for balanced and unbalanced E1 connectivity and conform easily to customers' specific applications.The Cisco E1/T1 ISDN PRI network modules also supply connectivity for internal digital modems in the Cisco 3660 and 3700 series routers with connectivity options for PRI T1 channel associated signaling (T1-CAS) and E1-CAS R2 signaling. This provides for a high concentration of V.92-compatible modems while still allowing expandability for other critical services.The Cisco E1/T1 ISDN PRI network modules (NM-xCE1T1-PRI) are software configurable between E1 or T1 operation balanced or unbalanced E1 termination and CSU/DSU. Customers no longer need to buy a specific module for T1 support and then another card for E1 connectivity. In addition the same modules provide for balanced (120-ohm) and unbalanced (75-ohm) E1 termination.

NEW enhanced PRI Network Modules offer a single integrated 10/100BaseTX port with eight fixed combinations of one and two-port T1/E1 PRI interfaces. The new network modules differ from the original PRI network modules in that they now include a 10/100 Ethernet port and the E1 versions now support balanced and unbalanced modes on the same card. The E1 versions are available factory configured in either mode with an option to change mode if required. The T1 PRI/Channelized versions are available with and without an integrated CSU and in one or two-port versions. The network modules without an integrated CSU have a DB-15 connector and require a connection to an external CSU PBX or channel bank whereas the network modules with an integrated CSU connect directly to the network via an RJ-45 cable.Each of the T1 network module versions support speeds up to 1.544Mbps full-duplex and provide up to 24 virtual interfaces in channelized mode and up to 23 ISDN B-channels in the PRI mode. The E1 network modules come in either balanced (120 ohm) or unbalanced (75 ohm) modes and are compatible with the ITU-T G.703/G.704 specifications. All four versions have field changeable 75/120 ohm jumpers to select balanced and unbalanced modes. The E1 network modules supports speeds up to 2.048Mbps full-duplex and provide up to 30 virtual interfaces in channelized mode and up to 31 ISDN B-channels in PRI mode.

NEW enhanced PRI Network Modules offer a single integrated 10/100BaseTX port with eight fixed combinations of one and two-port T1/E1 PRI interfaces. The new network modules differ from the original PRI network modules in that they now include a 10/100 Ethernet port and the E1 versions now support balanced and unbalanced modes on the same card. The E1 versions are available factory configured in either mode with an option to change mode if required. The T1 PRI/Channelized versions are available with and without an integrated CSU and in one or two-port versions. The network modules without an integrated CSU have a DB-15 connector and require a connection to an external CSU PBX or channel bank whereas the network modules with an integrated CSU connect directly to the network via an RJ-45 cable.Each of the T1 network module versions support speeds up to 1.544Mbps full-duplex and provide up to 24 virtual interfaces in channelized mode and up to 23 ISDN B-channels in the PRI mode. The E1 network modules come in either balanced (120 ohm) or unbalanced (75 ohm) modes and are compatible with the ITU-T G.703/G.704 specifications. All four versions have field changeable 75/120 ohm jumpers to select balanced and unbalanced modes. The E1 network modules supports speeds up to 2.048Mbps full-duplex and provide up to 30 virtual interfaces in channelized mode and up to 31 ISDN B-channels in PRI mode.