--- title: Rear Panel Connections on Ensemble FireWire description: Rear panel connections on Ensemble FireWire --- [Skip to content](https://knowledge.apogeedigital.com/real-panel-connections-on-ensemble-firewire#main-content) English Show submenu for translations [Contact us](https://knowledge.apogeedigital.com/kb-tickets/new?hsLang=en) ![Apogee Logo White.png\]](https://knowledge.apogeedigital.com/hs-fs/hubfs/Apogee%20Logo%20White.png?height=40&name=Apogee%20Logo%20White.png) Open main navigation Close main navigation - English Show submenu for translations - [Contact us](https://knowledge.apogeedigital.com/kb-tickets/new) - Go to apogeedigital.com Go to apogeedigital.com How can we help you? - There are no suggestions because the search field is empty. 1. [Knowledge Base](https://knowledge.apogeedigital.com/?hsLang=en) 2. [Legacy Products](https://knowledge.apogeedigital.com/legacy-products?hsLang=en) 3. [Ensemble (Firewire)](https://knowledge.apogeedigital.com/legacy-products?hsLang=en#ensemble-firewire) # Rear Panel Connections on Ensemble FireWire ![Screenshot 2023-05-04 at 12.38.46 PM](https://knowledge.apogeedigital.com/hs-fs/hubfs/Screenshot%202023-05-04%20at%2012.38.46%20PM.png?width=688&height=122&name=Screenshot%202023-05-04%20at%2012.38.46%20PM.png)    **1. MIC1–4** – These XLR connectors accept balanced mic or line inputs; input level is determined in software control. **2. INSERT SEND – RETURN (channels 1–2)** – These TRS connectors provide balanced analog insert points before the A/D conversion stage; inserting a jack in the RETURN connector activates insert return. • The insert send may also serve as a direct out: when only the insert send is connected, signal to the A/D conversion stage is not interrupted. • The insert return may also serve as a balanced TRS line input. **3. HI–Z (channels 3–4)** – These TRS connectors accept high impedance inputs for channels 3–4, similar to front panel HI–Z inputs. **4. ANALOG INPUT 5–8** – These TRS connectors accept line level inputs for channels 5–8; input level is determined in software control. **5. ANALOG OUTPUT 1–8** – These TRS connectors provide line level outputs for channels 1–8; input level is determined in software control. **6. S/PDIF** – These coaxial connectors provide S/PDIF format digital I/O. **7. OPTICAL IN/OUT** – These Toslink connectors provide S/PDIF, ADAT or SMUX format digital I/O; format is determined in software control. **8. FIREWIRE** – These FW 400 connectors provide Firewire I/O to an Apple OSX computer. Stand-Alone Mode – If Ensemble doesn’t detect a valid Firewire connection, it will switch to Stand-Alone mode after a few moments. This is indicated either by a red STATUS LED (when the Firewire connection is present but not valid) or by a green LED (when there is no Firewire connection). In Stand-Alone mode, all routing, mixing and control settings made when the unit was last connected to a Mac are saved in Ensemble flash memory, thus allowing the use of the unit when not connected to a computer. Thus, it’s possible to use Ensemble as a Stand-Alone mixer or AD-DA converter. **9. WORD CLOCK IN/OUT** – These BNC connectors provide word clock I/O. **10. WC IN 75 OHM TERM** – This switch terminates the Word Clock input with a 75 ohm load. **11. 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