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ETRM01 2U 20-slot E1/T1 Cross Rate Converter Rack

The ETRM01 is a 2U 19 (23)" concentrator rack for E1 and T1 Cross Rate Converters in central office installations. There are 20 slots available for hot swappable FTEC cards. An optional SNMP card can be installed into the first slot for configuration and management, leaving 19 slots available for FTEC cards. The SNMP card provides both local control via an RS-232 serial console port and remote IP management using Telnet, web GUI, SNMP protocol. Each E1 card may be linked to a remote E1/T1 PABX or a stand-alone FTEC Unit. The ETRM01 accommodates an optional second hot swappable shared power supply module which may derive power from AC (100-240) or DC (-48V) power sources. On the front panel of FTEC, combinations of BNC and RJ-45 connectors are utilized for E1 and T1 Line interface connections.

Data to Fractional E1

The FRM220-E1/DATA slide in card DSU/CSU is a digital access unit for Unframed or Fractional E1 services. The FRM220-E1/DATA data channel supports user-selectable transmission rates via selected E1 timeslots, which provides integral multiples of 64kbps or 56kbps, up to a maximum 2.048Mbps (unframed), for a line attenuation of up to 43 dB on twisted pair or coax cable. This  provides an approximate operating range up to 2km (using 22AWG). The FRM220-E1/DATA front panel provides status LEDs for monitoring the CSU and DSU conditions for initiating local and remote loopback with integral BERT. The FRM220-E1/DATA features a Data cable adapter for connection to industry standard routers. When the FRM220-E1/DATA card is Placed in the FRM220 rack with SNMP management, in-band management allows viewing the card and remote converter’s status, type, version, link status, data link status and alarms. Both card and remote can be configured to enable or disable the port, reset the port, set the data rate, modify the clock mode and initiate local or far end loop back test.

FRM220A-Eoe1 - Ethernet over E1

The FRM220A-Eoe1 is an Ethernet over E1 bridge and is part of the FRM220 family of interface converters and fibre optic line drivers.

The FRM220A-Eoe-1, when used in pairs, enables users to connect 2 Ethernet networks together over an E1/G.703 link.

The LAN interface on the unit is presented as a single 10/100BaseTX RJ45 connector and the E1/G.703 interface is presented as either a pair of 75 ohm BNC connectors or a 120 ohm RJ45 connector.

The FRM220A-Eoe-1 has the capability to be connected to both unframed 2.048Mbps E1 interfaces as well as fractional n x 64Kbps E1 services.

Configuration can either be locally done via on-board DIP switches, or if remote management is required the FRM220A-Eoe-1 can located within a managed chassis to allow remote Web, Telnet and SNMP management.

When utilised in a managed environment the remote FRM220A-Eoe-1 can be managed over the E1 link by using the 'spare bits' in Timeslot 0 (fractional operation only).

The FRM220A-Eoe1 also features integral test capabilities to aid in any troubleshooting process. This includes an in-built Bit Error Rate Tester and the ability to place various software loops within the system. This enables engineers at either end of the line to test both the FRM220A-Eoe1's and the connected E1 line.

The Ethernet interface supports auto-negotiation and auto MDI/MDIX, allowing plug-and-play connections without any additional configuration. Alternatively the Ethernet interface can have its speed and duplex hardset if necessary.

EOE1A Ethernet over unframed E1 w/SNMP

The EOE1-A is a Channel Service Unit for unframed ITU-T G.703 E1 that features a built-in Ethernet bridge. The CSU has a built-in Network Terminating Unit (NTU) and may connect to either 75 Ohm unbalanced, BNC connectors or to 120 Ohm balanced, unframed E1 via twisted pairs and a shielded RJ-45 connector. The EOE1-A Ethernet Bridge uses HDLC encapsulation to transport Ethernet packets across the WAN and supports 10/100 auto-negotiation or manual settings for 10M, 100M, Full or Half Duplex Ethernet. The Ethernet port also supports a standard auto-MDIX feature that will completely eliminate Ethernet cross-over cables or the guessing that is sometimes involved in choosing a cable when connecting to a HUB or a PC. The EOE1-A is very easy to configure by a menu driven serial console interface. SNMP and proprietary MIB add the ability to manage the EOE1-A centrally through third party network management software.

EOE1 Ethernet over unframed E1

The EOE1 is a Channel Service Unit for unframed ITU-T G.703 E1 that features a built-in Ethernet bridge. The CSU has a built-in Network Terminating Unit (NTU) and may connect to either 75 Ohm unbalanced, BNC connectors or to 120 Ohm balanced, unframed E1 via twisted pairs and a shielded RJ-45 connector. The Eoe1 Ethernet Bridge uses HDLC encapsulation to transport Ethernet packets across the WAN and supports 10/100 auto-negotiation or manual settings for 10M, 100M, Full or Half Duplex Ethernet. The Ethernet port also supports a standard auto-MDIX feature that will completely eliminate Ethernet cross-over cables or the guessing that is sometimes involved in choosing a cable when connecting to a HUB or a PC. The Eoe1 is very easy to configure by DIP switch setting.

E1/T1 Cross Rate Converter

The FRM220-FTEC is a slide-in card E1/T1 converter and timeslot cross connect which enables conversion between one T1 signal and one E1 signal. T1 and E1 signals with frames employ u-Law and A-Law compander encoding principles respectively and encode those analog signals into 64kbits digital data. The E1 interface supports CCS (PCM31) or CAS (PCM30) frames with or without CRC-4 and with HDB3 line coding. The T1 interface supports D4 or ESF frame formats with B8ZS or AMI line code. Multiple clock source selection provides maximum flexibility in connecting both T1 and E1. The clock source may be from the T1 recovery clock, from the E1 recovery clock, from the internal oscillator, from an external clock or via transparent timing. All setup controls can be performed via internal DIP switch settings or via the RS-232 console port and ASCII terminal. Tests and diagnostics can easily be performed from the front panel push button switches.  Diagnostics include T1 local/remote and E1 local/remote loop back.

ETU/TTU-ET100 10/100 Base-TX Ethernet Bridge

The ETU/TTU-ET100 10/100 Base-TX Network Bridge is a high performance remote, self-learning, Ethernet bridge. Its compact size and low cost makes it ideal for cost-sensitive bridging applications, or as a LAN extender or segmenter over bit stream type infrastructures. ET100 Provides an Ethernet (IEEE802.3u) Bridge function over the WAN when matched to another ET100 module, ET100 standalone, or a compatible bridge utilizing standard HDLC (ISO 13239) protocol. The interface connection is a shielded RJ-45 connector for 10/100Base Ethernet and auto-MDIX. Operates at any n56/n64 fractional or unframed E1 speed.

ETU/TTU-ET100R 10/100 Base-TX Ethernet Router

The ETU/TTU-ET100R 10/100 Base-TX Ethernet Router is used when the E1/T1 standalone access units are installed with an ET100R Interface, the unit is not only an access unit for E1 or T1 but also becomes a high performance WAN Router for 10/100BASE-T Ethernet extension. The ET100R Ethernet Router interface module for our ETU/TTU Series DSU/CSU Access Units may be accessed via the RS-232 asynchronous communication port, a serial crossover cable (provided) and text based terminal emulation software (Hyper Terminal TM). Once an IP address has been established for the subnet, the ET100R may also be accessed via Telnet. The serial port and Telnet configuration menus are identical and may include password protection.