--- title: "jlcooper" url: "https://maker.wiznet.io/TheoIm/resellers/jlcooper/" markdown_url: "https://maker.wiznet.io/TheoIm/resellers/jlcooper/md" type: "VAR: Value-Added Reseller Products" author: "jlcooper" author_url: "https://jlcooper.com/_php/product.php?prod=elitecjllhn" editor: "WIZnet" editor_url: "https://maker.wiznet.io/" original_author: "jlcooper" original_url: "https://jlcooper.com/_php/product.php?prod=elitecjllhn" published: "2026-09-29" language: "en" hardware: ["WIZnet W7100A"] likes: 0 views: 29 comments: 0 source: "WIZnet Makers (https://maker.wiznet.io/)" --- # jlcooper > The JLCooper SloMo Elite-C is a desktop control panel that drives slow-motion replay on a video server in broadcast and sports production. Original author: jlcooper (source: https://jlcooper.com/_php/product.php?prod=elitecjllhn) ## Components - **WIZnet W7100A** x 1 ([docs](https://docs.wiznet.io/Product/iMCU/W7100/w7100a)) ## Article SloMo Elite-C sits in front of a replay operator during a live broadcast. The operator finds a replay point and controls playback speed with a jog/shuttle wheel and a T-Bar, and that input travels over the network to a video server. The manufacturer describes a metal-enclosure product with a display, jog/shuttle, T-Bar and control buttons, and lists Ethernet and USB as standard interfaces. The two interfaces serve different purposes. USB is for a directly attached host PC. Ethernet is the path to the video server. ![](https://maker.wiznet.io/upload/ckeditor5/528786578%5F1790754362%2Epng) What makes this product worth studying is that its requirements differ from factory automation. Replay control has to turn hand movement into frames on screen immediately. If the picture does not move as far as the wheel turned, the operator notices at once. That is where the decision to keep the control-surface-to-server segment wired comes from. ## Company JLCooper Electronics builds control surfaces for broadcast and post-production, based in El Segundo, California. The manual's copyright page reads `142 Arena Street, El Segundo, CA 90245 USA`. The SloMo family covers video server and slow-motion replay control. The manufacturer distributes this manual from its *current* product manual list, not the legacy list. The 2019 second edition is still the official document for the product. The product is actively sold. The manufacturer's family page lists three variants that differ by wheel mechanism — `ELITE-C-SLLHN` and `ELITE-C-JLLHN` with jog/shuttle, and `ELITE-C-OLLHN` with a jog-only wheel — and none is marked discontinued. The product page describes the wheel as a third-generation Hall effect mechanism. Dealer catalogs carry a fourth. [B&H lists `ELITE-C-ELLHN`](https://www.bhphotovideo.com/c/product/1319016-REG/jlcooper_elite_c_ellhn_slomo_elite_with_jlcooper.html) alongside the three on the family page. That variant does not appear on the manufacturer's own family page as checked, so it is cited here from the dealer listing rather than from JLCooper. [Markertek](https://www.markertek.com/brand/jlcooper-electronics) also carries the line, and [Pro AV Warehouse](https://proavwarehouse.com/pro-av-brands/jl-cooper/jl-cooper-elite-c-jllhn-slo-motion-controller-with-jlcooper-jog-shuttle/) lists the JLLHN variant at **$2,542.00** with the note that in-stock items ship direct from JLCooper. One detail matters for how this write-up should be read. The product page describes the Elite-C as "expressly made for software developers and OEMs" and directs buyers to contact JLCooper for customization options and developer documents. It is an OEM-oriented product, so a given order's configuration can differ from the one the manual documents. ## Technical Architecture There is a serial segment between the control surface and the network. The chassis speaks serial internally, and an Ethernet Interface module carries that traffic over TCP or UDP. ![](https://maker.wiznet.io/upload/ckeditor5/314965358%5F1790675491%2Epng) This structure is why baud rate and parity appear in the manual at all. Serial parameters documented in a networking section are a signal that a conversion layer sits in between. The manual asks you to verify the following values for the Ethernet interface to work. | Parameter | Value | | --- | --- | | Baud Rate | 115200 | | Parity | ODD | | Timer | 3 | | Size | 5 | | Enable debug message output | cleared | After changing these values you click Setting at the top of the Configuration Tool, then Reset. The tool offers three things: a network configuration screen for IP settings, a Ping button that confirms the module itself responds, and a Search that finds the MAC address so that Upload can push new firmware. Four Ethernet communication modes are documented: **TCP Server**, **TCP Client**, **TCP Mixed** and **UDP**. Which one you use depends on whether the video server accepts or initiates the connection, which is the standard behaviour of a Serial-to-Ethernet module. ### The current product page says the same thing This is not only a 2019 document. The manufacturer's live product page lists the interfaces as: - `10/100 Ethernet (TCP/IP Client/Server, UDP with Static or DHCP)` - `USB 2.0 Full Speed` - `USB Serial Port Emulation` Two things follow. First, the client/server/UDP set and DHCP support on the current page match the modes the 2019 manual documents, so the module's role is corroborated by a second, present-day source rather than resting on the manual alone. Second, the USB side is described as serial port emulation — the host sees a serial port, not a network interface. That is consistent with USB bypassing the Ethernet module entirely. > "…you should erase code and data flash in **W7100** and upload correct files by using **WIZISP for iMCU W7100** program." > > — SloMo Elite-C User Manual, Firmware Upload, p.18. The same section states that the MAC address appears in the "Serial to Ethernet" search result area. ## What the WIZnet Module Actually Does Separating what the module handles from what it does not makes this case harder to cite incorrectly. **What it does** - Carries the chassis's serial data over TCP Server, TCP Client, TCP Mixed or UDP. - Holds the network settings (IP, MAC) and exposes them through the Configuration Tool. - Answers Ping so that network reachability can be confirmed on its own. - Provides a firmware upload path over the network. **What it does not do** - It does not interpret jog, shuttle or T-Bar input. The chassis does that. - It does not interpret the video server's control protocol. It moves bytes. - It is not involved in the USB path. USB goes straight to the host without passing through the module. ### This is not a dual-network-path product Because Ethernet and USB are both offered, the product is easy to misread as a wired/wireless redundancy case. It is not. The product page calls the USB side "USB Serial Port Emulation" — the host sees a serial port, not a network interface. Having both alive is a separation of purpose, not redundancy. A redundancy claim would require two paths to the same destination being live at once. ### Chip layer: document evidence and product fact, kept apart Two things are verifiable in the manual. It calls the internal module an "Ethernet Interface module in the SloMo Elite-C", and its firmware recovery procedure names W7100 and WIZISP for iMCU W7100. Adding the vendor-side fact makes the layering visible. WIZnet's documentation describes the [iMCU W7100A](https://docs.wiznet.io/Product/Chip/MCU/W7100/w7100a) as a one-chip part combining an 8051-compatible core, 64 KB SRAM and a hardwired TCP/IP core with integrated MAC and PHY, supporting TCP, UDP, IPv4, ICMP, ARP, IGMP and PPPoE. It is the base part behind WIZnet's [WIZ107SR](https://docs.wiznet.io/Product/Modules/Serial-to-Ethernet-Module/WIZ107SR) Serial-to-Ethernet module generation. The four communication modes documented in the JLCooper manual match how that module family behaves. The manual itself never uses the phrase "hardware TCP/IP", and it names W7100 where WIZnet's current documentation covers the W7100A revision. The layering described here combines document evidence with vendor product facts; it is not a measured confirmation of stack behaviour. ## Migration Path: Designing This Today The model name shown in the Configuration Tool screen is **WIZ107SR**. This is not only a question of age. WIZnet's own documentation states that **the W7100A is not recommended for new design and is not supported by ioLibrary**. A product whose 2019 configuration document is still its current manual will pick its network part again at the next revision, and the vendor has already marked which way that decision goes. Two current options cover the same role. - **WIZ750SR** — a current Serial-to-Ethernet module based on the W7500. This keeps the product structure as it is and moves only the module to the current generation. The configuration workflow (search, configure, upload firmware) stays in the same family. It is the option that does not change the original design thinking. - **W55RP20** — RP2040 and W5500 in a single package. Instead of mounting a finished module, this goes directly onto the controller board and implements the Serial-to-Ethernet behaviour in firmware. That buys headroom: a configuration web UI, product-specific protocol handling and status reporting can live on the same part. It also opens the door to removing the serial segment entirely and moving the control surface closer to the network layer. Pin compatibility and drop-in replacement were not verified. Read these as current parts that fill the same role. An actual replacement decision needs separate checks on board connectors, power and configuration tool compatibility. ### The same check works on other vendors SloMo Elite-C is not a special case, it is an instance of a pattern: equipment that adopted a Serial-to-Ethernet module in the 2010s, is still being sold, and is therefore approaching a revision in which the network part gets chosen again. Broadcast and professional AV are full of that shape — long product lifecycles, small volumes, control surfaces rather than data paths. The check is cheap and repeatable. Open the manufacturer's manual and read the firmware recovery section. A vendor that tells its users to erase flash and reload with a named tool has published its base part, whether or not it publishes a BOM. That one section is usually enough to identify the module family without a teardown. ## Developer Takeaways - **Designing the control surface as a serial device and delegating the network to a module still works.** Keeping input interpretation and the network stack on separate parts lets each be revised on its own schedule. - **Baud rate and parity in a manual are a tell.** Serial parameters in the networking section of a product document mean a conversion layer is present. - **The firmware recovery procedure exposes the part number.** Even without a BOM or a teardown, the name of the recovery tool and the instruction to erase flash identify the base chip. It is the first section to read when confirming a commercial product's internals from documentation. - **One Ping button in the configuration tool makes field triage possible.** The operator can tell a network failure from a higher-layer protocol failure without help. - **Offering USB and Ethernet together is separation of purpose, not redundancy.** Do not describe it as failover unless both paths reach the same destination. ## Related Maker Content and Application Value [NORVI X — ESP32-S3 Modular Industrial IoT Controller](https://maker.wiznet.io/Aimee0/resellers/norvi-x/) *Shared: Ethernet added inside a commercial product. Different: the layer it attaches at.* In NORVI X the MCU talks to the W5500 directly over SPI. SloMo Elite-C attaches a finished Serial-to-Ethernet module over serial. Seeing the two side by side shows that the choice comes down to engineering headcount and revision cadence rather than capability. [ThinkLink GD6 — LoRaWAN Gateway with W5500 Primary Uplink](https://maker.wiznet.io/Aimee0/resellers/gd6/) *Shared: wired as the primary path. Different: traffic direction.* GD6 collects data from wireless nodes and sends it up over the wire. SloMo Elite-C sends human input down over the wire. The directions are opposite, but the reason for keeping the wire primary is the same: it is the segment where a dropout is immediately visible. [BlueSky AC EV Charging](https://maker.wiznet.io/Aimee0/resellers/bluesky-ac-ev-charging/) *Shared: commercial equipment installed in the field. Different: control period.* Charging infrastructure operates on a control period measured in seconds. Replay control operates per frame. Two cases on the same wired Ethernet with very different response requirements. ### The gap this case fills Commercial product cases on WIZnet Maker cluster around industrial automation and gateways. Broadcast equipment is thinly represented. The segment from a control surface to a video server is an unusual condition — hand movement has to come back as frames — and finding a Serial-to-Ethernet module in that path gives a different angle from the existing cases. It also surfaces a vendor segment where the installed base runs on a generation the vendor has already marked as not for new design. ## FAQ **Ethernet and USB are both offered. Is this a dual-network-path case?** No. USB is a direct host interface, not a network path. Both interfaces being present is a separation of purpose, not two live paths to the same destination. **Searching the manual PDF does not find the module model name. Is the evidence sound?** W7100 and WIZISP are in the body text, in the Firmware Upload section on page 18. The module model name WIZ107SR appears inside the Configuration Tool screenshot in Network Configuration — Figure 6, page 8. It is an image, so PDF text search will not find it. You have to open the figure. **Do currently shipping units contain the same module?** Not established. The product is still sold, and the interface specification on the current product page matches what the manual documents. But the manual is the 2019 second edition, and the variants were not all introduced at the same time — `ELITE-C-SLLHN` sits under a much later B&H catalog number than the others. The product page also describes a third-generation Hall effect wheel mechanism. This write-up covers the generation the 2019 manual documents; it does not claim the same module in every variant now shipping. **Was this confirmed by opening the unit?** No. This is based on the manufacturer's published documentation. It should be kept distinct from cases where a teardown re-confirmed the installed module. **What would you use to build this structure today?** WIZ750SR and W55RP20 cover the same role. WIZnet lists the W7100A as not recommended for new design and not supported by ioLibrary, so a new build would not start there. WIZ750SR if the product structure stays and only the module moves; W55RP20 if it goes onto the controller board and absorbs the configuration UI as well. Replacement compatibility needs separate verification either way. ## Verified Scope and Sources | Source | Checked | What was confirmed | | --- | --- | --- | | [Manufacturer product page (ELITE-C-JLLHN)](https://jlcooper.com/_php/product.php?prod=elitecjllhn) | 2026-09-29 | Product identity, control surface layout, metal enclosure; interface specification `10/100 Ethernet (TCP/IP Client/Server, UDP with Static or DHCP)`, `USB 2.0 Full Speed`, `USB Serial Port Emulation`; positioning as a product for software developers and OEMs. No discontinued or legacy wording. | | [Manufacturer family page](https://www.jlcooper.com/_php/family.php?fam=slomoelite) | 2026-09-30 | Three variants listed: `ELITE-C-SLLHN`, `ELITE-C-JLLHN` (both jog/shuttle) and `ELITE-C-OLLHN` (jog only). None marked discontinued. `ELITE-C-ELLHN` does *not* appear on this page — it is cited from the B&H listing below. | | [Official user manual (PDF)](https://jlcooper.com/_manuals/current/slomoelite/SloMo_Elite-C_User_Manual.pdf) | 2026-09-29 | Copyright block (Second Edition, P/N 932152, ©2019); W7100 and WIZISP for iMCU W7100 named; the phrase "Ethernet Interface module in the SloMo Elite-C"; the "Serial to Ethernet" search result area; serial settings 115200 / ODD / Timer 3 / Size 5; four communication modes. All confirmed in body text. | | Same manual, Figure 6 (Network Configuration, p.8) | 2026-09-29 | Model name WIZ107SR shown in the Configuration Tool screen. It is a screenshot image, so it cannot be confirmed by text search. | | [Manufacturer manual index (Current)](https://www.jlcooper.com/_php/downloads.php?op=manuals&sub=current&sort=namer) | 2026-09-29 | The manual is distributed as a current product document, not a legacy one. | | Dealer listings — [Pro AV Warehouse](https://proavwarehouse.com/pro-av-brands/jl-cooper/jl-cooper-elite-c-jllhn-slo-motion-controller-with-jlcooper-jog-shuttle/), [B&H](https://www.bhphotovideo.com/c/product/1319018-REG/jlcooper_elite_c_jllhn_slomo_elite_with_jlcooper.html), [Markertek](https://www.markertek.com/brand/jlcooper-electronics) | 2026-09-29 | Currently sold. Pro AV Warehouse lists ELITE-C-JLLHN at $2,542.00 and states in-stock items ship direct from JLCooper. B&H carries four listings — [ELLHN](https://www.bhphotovideo.com/c/product/1319016-REG/jlcooper_elite_c_ellhn_slomo_elite_with_jlcooper.html), JLLHN and OLLHN under adjacent catalog numbers, plus the [SLLHN listing](https://www.bhphotovideo.com/c/product/1831385-REG/jlcooper_elite_c_sllhn_slomo_elite_with_hall.html) under a later one, indicating it was catalogued after the first three. **ELLHN is sourced here, not from the manufacturer's family page.** | | [WIZnet iMCU W7100A documentation](https://docs.wiznet.io/Product/Chip/MCU/W7100/w7100a) | 2026-09-29 | 8051-compatible core with 64 KB SRAM and a hardwired TCP/IP core with integrated MAC and PHY; supports TCP, UDP, IPv4, ICMP, ARP, IGMP, PPPoE. Marked not recommended for new design and not supported by ioLibrary. | | [WIZnet WIZ107SR documentation](https://docs.wiznet.io/Product/Modules/Serial-to-Ethernet-Module/WIZ107SR) | 2026-09-29 | WIZ107SR as a WIZnet Serial-to-Ethernet module, the family the Configuration Tool screen belongs to | ### Verification limits **What is established.** The product is currently sold through broadcast dealers. The manufacturer's family page lists three variants; a fourth, `ELITE-C-ELLHN`, is carried by B&H but does not appear on that family page, and is cited from the dealer listing. The 2019 second edition manual, still distributed as the current product document, names W7100 and WIZISP for iMCU W7100 in the firmware recovery procedure and calls the network part an Ethernet Interface module. The interface specification on the live product page matches the communication modes that manual documents. **What is not.** Scope is the generation the 2019 manual covers. The variants were not all introduced together — `ELITE-C-SLLHN` sits under a much later B&H catalog number than the others — so the internals of every currently shipping variant are not claimed here. The product is also sold as an OEM and developer platform with customization offered, which means an individual order's configuration can differ from the documented one. The manual names W7100 while WIZnet's current documentation covers the W7100A revision of the same part family; no attempt was made to determine which revision is fitted. Nothing here was confirmed by a teardown, and this should be kept distinct from cases where one was done. **Migration Path.** WIZ750SR and W55RP20 are presented as current parts filling the same role. Connector, power and configuration tool compatibility were not verified, and no drop-in replacement is claimed. --- A commercial product's internals leave traces in its documentation even when the BOM is not published. For SloMo Elite-C the trace was in the firmware recovery procedure. One sentence telling you to erase flash and reload identifies the layer that handles Ethernet inside a broadcast control panel — and, in this case, points at a part the vendor has already marked as not for new design. --- Source: https://maker.wiznet.io/TheoIm/resellers/jlcooper/