The protocol converter family's E1 models — framed and unframed 2.048 Mbps circuits, Ethernet-bridging E1 converters, and multi-E1 units up to 16E1 with Fast Ethernet.
E1 — the 2.048 Mbps framed TDM circuit — underpins telephony trunks, utility protection signalling, transport networks and a generation of industrial control links across most of the world outside North America. Those circuits were built to run for decades, and they do; what changes is the medium available to carry them, as copper plants retire and fiber becomes the only path between sites. This family's E1 models exist for that migration: E1 interfaces in, fiber out, circuit timing preserved.
The documented single-channel models state the discipline exactly: a 1Ch Framed E1 to Fiber Converter provides one framed E1 interface and one optical interface, performing interface conversion, rate conversion and timeslot extraction between E1 and optical, with the unframed mode running the data channel at 2.048 Mbps and an inter-set loop test function for maintenance. Its unframed sibling and the E1-to-Ethernet bridge models (E1 presented as 10/100Base-T Ethernet for long-distance bridging) cover the other standard shapes, and the family scales up to multi-E1 units such as the 16E1-4FE converter documented in the PDH multiplexer family.
| Model (official product name) | Series | Documentation |
|---|---|---|
| 16E1-4FE Converter | — | Full specification confirmed per model at quotation |
| 4*E1 to 4*10/100Base-Tx converter | — | Specification captured from the official product page |
| 4E1-1FE Converter | — | Specification captured from the official product page |
| 8E1-8FE Converter (Ethernet can be divided into logical isolation) | — | Specification captured from the official product page |
| E3/DS3 to Ethernet Converter | — | Full specification confirmed per model at quotation |
| Unframed E1-V.35 Converter | — | Full specification confirmed per model at quotation |
| V.35 Fiber Optic Modem | — | Full specification confirmed per model at quotation |
| V.35 to Ethernet Interface Converter | — | Full specification confirmed per model at quotation |
| 16Ch POTS（FXO/FXS）Telephone over Fiber Mux | — | Full specification confirmed per model at quotation |
| 1Ch Framed E1 to Fiber Converter | — | Specification captured from the official product page |
| 1Ch POTS（FXO/FXS）Telephone over Fiber Mux | — | Full specification confirmed per model at quotation |
| 1Ch Unframed E1 to Fiber Converter | — | Specification captured from the official product page |
E1 models drawn from the Protocol Converter family (8 models) and the E1 units within Other Fiber Optic & Networking Products (14 models), including the documented framed/unframed 1-channel converters.
A framed E1 carries structured timeslots (and possibly CAS/CCS signalling); an unframed E1 is a clear 2.048 Mbps pipe. The models differ accordingly — the documented pair splits exactly on this line. State the circuit type from your existing equipment's configuration.
E1 out at the far end (circuit extension), or Ethernet out (the bridge models, where E1 is the transport between two Ethernet islands)? The two jobs take different models from this same family — say which, plainly.
TDM circuits care about timing sources, and maintainers care about loopback testing — the documented converters include inter-set loop test. State the clocking arrangement of the circuit being extended so it is preserved in the design.
One or a few circuits, point to point: converter. Many E1s plus Ethernet services to aggregate onto one fiber pair with protection options: the PDH multiplexer page. The families are siblings; the channel count decides.
In this catalogue the E1 models live inside the Protocol Converter family — the umbrella for legacy-interface conversion, with the serial family handling RS232/RS485/CAN. If your interface is neither, name it in the inquiry.
Yes — the family documents E1-to-Ethernet bridge models (an E1 channel presented as 10/100Base-T at the far end). It is the standard trick for using leased or legacy E1 capacity as an Ethernet bearer.
Send the model name, the distance, the fiber type and the quantity. We will confirm the matching transmitter/receiver pairing, the optical module and the full specification of the exact model in writing before you pay.