> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/telecom-references/transmission-and-lines/monitoring-patch-panel.md). # Monitoring patch panel The TelcoBridges Monitoring Patch Panels allow monitoring E1/T1/J1, DS3 or STM1/OC3 links. ### E1/T1/J1 Monitoring Patch Panel ![Picture of monitoring patch panel for the TM1000 network probes](https://docs.telcobridges.com/w/images/5/5d/Monitoring-patch-panel-2.jpg) ![Schematic showing a Tmonitor device plus the Isolation and Monitoring patch panels](https://docs.telcobridges.com/w/images/1/19/Schematic-TM-device-plus-monitoring-patch-panel.jpg) The TelcoBridges E1/T1/J1 Monitoring Patch Panel, used in conjunction with the Tmonitor [TM1000](https://telcobridges.com/products/network-monitoring-tmonitor/) network probe or the [Tmedia](https://telcobridges.com/media-gateways/products/tmedia-gateways/) gateway, enables the monitoring of up to 32 E1/T1/J1 signals. **Important note:** Two monitoring patch panels are required to support 64 E1/T1/J1 interfaces. The patch panel connects to the tapped E1/T1/J1 signals to be monitored. It can be equipped with high-impedance circuits to limit the current drain on the active E1/T1/J1 signal such that it can probe the electrical signal while minimizing disturbances on the actual signal itself. A copy of the connected link signals in each direction is routed to the [TM1000](https://telcobridges.com/products/network-monitoring-tmonitor/) Network Probe (or the [Tmedia](https://telcobridges.com/media-gateways/products/tmedia-gateways/) gateway used as a probe) which can capture [SS7](https://telcobridges.com/media-gateways/solutions/signaling/migrating-ss7-sigtran/) messages, [HDLC](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/protocols/hdlc/README.md)-like packets, record [PCM](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/protocols/pcm/README.md) voice, or the raw bit stream. #### References * [E1/T1/J1 patch panel Data sheet](https://docs.telcobridges.com/w/images/1/15/Monitoring_patch_panel_datasheet.pdf) ### DS3 / STM1 Monitoring Patch Panels In addition to E1/T1/J1 monitoring patch panel, TelcoBridges also has monitoring patch panels for DS3 and STM1/OC3 links. The DS3 patch panel must be used with a DS3-equipped [Tmedia](https://telcobridges.com/media-gateways/products/tmedia-gateways/) units. The STM1/OC3 patch panel can be used with either [TM3000](https://telcobridges.com/products/network-monitoring-tmonitor/) monitoring units, or STM1/OC3 equipped [Tmedia](https://telcobridges.com/media-gateways/products/tmedia-gateways/) units. ### Using monitoring in Toolpack Starting with [Toolpack](https://telcobridges.com/products/development-platforms-tdev/) 2.9, monitoring equipment can be integrated in the Toolpack framework, which provides easy-to-use APIs to control monitoring, and also provides protocol analyzer classes. For more information about integration of monitoring functionalities in Toolpack, please refer to the following documentation: [Toolpack\_monitoring](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/transmission/toolpack-monitoring/README.md) --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://prosbcdocs.telcobridges.com/telecom-references/transmission-and-lines/monitoring-patch-panel.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.