| Product | Description | EOL Date | Alternate Products |
|---|---|---|---|
| TC1100 | RS232 Fiber Modem | 8/19/2020 | TC1705 |
| TC1200 | RS232 Fiber Modem w/controls | 8/19/2020 | TC1705 |
| TC1504 | Sync RS422 / 449 Fiber Modem | 3/25/2022 | TC1710 |
| TC1520 | RS422 / 485 Fiber Modem | 8/19/2020 | TC1705 TC1710 |
| TC1540 | RS232 / 422 / 485 Fiber Modem | 8/19/2020 | TC1705 TC1710 |
| TC1630 | T1 / E1 Fiber Modem | 8/19/2020 | TC1631 |
| TC1630R/S | T1 / E1 Fiber Modem (rack/standalone) | 6/16/2022 | TC1631 |
| TC1720 | Hi-Speed RS422 / 449 Fiber Modem | 3/25/2022 | TC1710 |
| TC1880 | RS232 Micro Multiplexer | 4/30/2021 | TC8116 |
| TC2100 | Multi-Drop Fiber Modem (Self-Healing Ring) | 10/29/2020 | TC3847-1 TC3847-1DR |
| TC2200 | Multi-Drop Fiber Modem (Bus/String) | 10/29/2020 | TC3847-1 TC3847-1DR |
| TC2400 | 'Hi-Speed' Multi-Drop Fiber Modem (Self-Healing Ring) | 2/1/2023 | TC3840DR |
| TC2800 | Multi-drop Multiplexer (Self Healing Ring) | 10/29/2020 | TC3847-1 TC3847-1DR |
| TC2850 | Multi-Drop Multiplexer w/Virtual Channel Mapping | 10/29/2020 | TC3847-1 TC3847-1DR |
| TC2900 | Multi-drop Multiplexer (bus/string) | 10/29/2020 | TC3847-1 TC3847-1DR |
| TC3020 | Low-Speed Fiber Converter (to 10 Mbps) | 8/6/2020 | TC3026 |
| TC3301 | 1000Base-T Media Converter | 2/26/2021 | TC3340 |
| TC3400/3420 | Serial-to-Ethernet Converter | 2/19/2021 | TC3847-1 TC3847-1DR |
| TC3705 | Unmanaged 4-Port 10/100 Switch | 1/12/2021 | TC3240 TC3340 TC3840DR |
| TC3715 | Unmanaged 6-Port 10/100 Switch | 1/17/2024 | TC3240 TC3840DR |
| TC3720 | Managed 6-Port 10/100 Switch (Self-Healing Ring) | 1/20/2023 | TC3840DR |
| TC3840-1 and -2 | Main & Management for 4U and 2U Chassis | 7/22/2022 | TC3840-5 |
| TC3840-3 | Main and Management Combo Card | 6/30/2024 | TC3840-5 |
| TC3840-4 and -2 | Main & Management for 2U Chassis Only | 7/22/2022 | TC3840-5 |
| TC3845-3 | T3 / E3-over-Ethernet ( DS3-over-Ethernet ) or Enterprise Networks | 10/8/2024 | No replacement planned |
| TC3846-1 | G.703/64K-over-IP Gateway | 10/8/2024 | No replacement planned |
| TC8300 | T1 / E1 Multiplexer (1-4 ch.) | 6/25/2021 | TC8518 |
| TC8510 | T1 / E1 & Data Multiplexer w/Ethernet Bridge | 2/28/2022 | TC1631 TC8518 TC3845-1 |
| TC8520 | Telephone, Ethernet & Data Multiplexer | 2/28/2022 | TC1901 TC8000 TC3846-6 |
| TC8530 | Data & Ethernet Multiplexer (4-12 Ch.) | 12/28/2023 | TC8116 TC3847-3 |