# Other Sapphire Wall-E 325e ## Description NST-1 RevB3 ## Project Details - **Owner:** tompowers - **Created:** 3/12/2026 - **Last Updated:** 3/12/2026 - **Visibility:** Public - **System Architecture:** ```mermaid flowchart TD Phone["Android Phone App"] -->|"USB-C CDC ACM"| NST1["NST-1 Dongle"] NST1 -->|"HF/TIA Stimulus+Measure"| Cable["RJ45 Cable Under Test"] Cable --> NST1R["NST-1R Remote"] subgraph Comm["Time Sliced Remote Comm"] NST1 -->|"RS-485 19.2k"| Cable Cable -->|"RS-485 19.2k"| NST1R NoteA["Comm window enabled"] end subgraph Measure["HF Measurement Window"] NoteB["Comm front end disconnected"] end subgraph PairAgile["Pair Agile Discovery"] Mux["Diff Mux or Crosspoint"] Relay["Hard Disconnect Switch"] Term["120R Termination switchable"] Mux --> Relay Relay --> Term end NST1 --> Mux NST1R --> Mux ``` - **Board Profile:** SDI - **Project Phase:** Proto - **Stars:** 1 ## Key Components ### J2 — [RJHSE5480](https://www.flux.ai/adrian95/rjhse5480~mzu.md) - Role Details: Placeholder RJ45; replace with TE 2496558-1 (Cat6A/10G) when available; RS-485 default pins 7/8 - Role: Connector - Part Type: Connector - Datasheet URL: https://cdn.amphenol-cs.com/media/wysiwyg/files/documentation/datasheet/inputoutput/io-modjack-rjhse.pdf - Manufacturer Name: Amphenol ICC (Commercial Products) - Connector Type: Modular / Ethernet Connectors - Manufacturer Part Number: RJHSE5480 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ~ [pin 11] - ~ [pin 10] - ~ [pin 9] - ~ [pin 12] - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - SHIELD [pin S1] - SHIELD__1 [pin S2] ### J2 — [RJHSE5480](https://www.flux.ai/adrian95/rjhse5480~mzu.md) - Role: Connector - Role Details: PLACEHOLDER - swap to Adam Tech MTJ-88TUX1-FS2-PG2T-L5-C6A-HT (Cat6A). RevB3 requires: pin 7 -> RJ45_P7_NST1, pin 8 -> RJ45_P8_NST1; shields to GND; leave unused pins unconnected. - Part Type: Connector - Datasheet URL: https://cdn.amphenol-cs.com/media/wysiwyg/files/documentation/datasheet/inputoutput/io-modjack-rjhse.pdf - Manufacturer Name: Amphenol ICC (Commercial Products) - Connector Type: Modular / Ethernet Connectors - Package: Through Hole - Manufacturer Part Number: RJHSE5480 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ~ [pin 11] - ~ [pin 10] - ~ [pin 9] - ~ [pin 12] - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - SHIELD [pin S1] - SHIELD__1 [pin S2] ### J2 — [RJHSE538802](https://www.flux.ai/vasy_skral/rjhse538802~gp.md) - Package: Through Hole - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Placeholder shielded RJ45 per RevB3; RS-485 defaults to pins 7/8 (RJ45_P7_NST1, RJ45_P8_NST1); shields to GND; leave NC unconnected - Manufacturer Name: Amphenol ICC (Commercial Products) - Datasheet URL: https://cdn.amphenol-icc.com/media/wysiwyg/files/drawing/rjhsex38x02.pdf - Manufacturer Part Number: RJHSE538802 - Role: Connector **Pins:** - LED1-1- [pin 9] - LED1-1+ [pin 10] - LED1-2- [pin 11] - LED1-2+ [pin 12] - LED2-1- [pin 21] - LED2-1+ [pin 22] - LED2-2- [pin 23] - LED2-2+ [pin 24] - P1-1 [pin 1] - P1-2 [pin 2] - P1-3 [pin 3] - P1-4 [pin 4] - P1-5 [pin 5] - P1-6 [pin 6] - P1-7 [pin 7] - P1-8 [pin 8] - P2-1 [pin 13] - P2-2 [pin 14] - P2-3 [pin 15] - P2-4 [pin 16] - P2-5 [pin 17] - P2-6 [pin 18] - P2-7 [pin 19] - P2-8 [pin 20] - Shield [pin SH-1] - Shield [pin SH-2] ### J2 — [7499010121A](https://www.flux.ai/adrian95/7499010121a~721.md) - Role: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 7499010121A - Package or Case Code: 7499010121A - Part Type: Connector - Package: Through Hole - Datasheet URL: https://www.we-online.com/components/products/datasheet/7499010121A.pdf - Role Details: RJ45 to cable under test - Manufacturer Name: Würth Elektronik **Pins:** - ~ [pin 9] - ~ [pin 10] - ~ [pin 11] - ~ [pin 12] - 8 [pin 8] - CRD [pin 5] - CTD [pin 2] - NC [pin 7] - RD- [pin 6] - RD+ [pin 4] - SHIELD1 [pin Z1] - SHIELD2 [pin Z2] - TD- [pin 3] - TD+ [pin 1] ### J2 — [RJHSE5480](https://www.flux.ai/adrian95/rjhse5480~mzu.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: RJHSE5480 - Connector Type: Modular / Ethernet Connectors - Manufacturer Name: Amphenol ICC (Commercial Products) - Part Type: Connector - Role Details: RJ45 to cable under test; RevB3 requires pins 1-8 exposed - Datasheet URL: https://cdn.amphenol-cs.com/media/wysiwyg/files/documentation/datasheet/inputoutput/io-modjack-rjhse.pdf - Package: Through Hole - Role: Connector **Pins:** - ~ [pin 11] - ~ [pin 10] - ~ [pin 9] - ~ [pin 12] - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - SHIELD [pin S1] - SHIELD__1 [pin S2] ### J4 — [RJHSE5480](https://www.flux.ai/adrian95/rjhse5480~mzu.md) - Datasheet URL: https://cdn.amphenol-cs.com/media/wysiwyg/files/documentation/datasheet/inputoutput/io-modjack-rjhse.pdf - Role Details: PLACEHOLDER - swap to Adam Tech MTJ-88TUX1-FS2-PG2T-L5-C6A-HT (Cat6A). RevB3: RS-485 defaults to pins 7/8; shields to GND. - Part Type: Connector - Manufacturer Name: Amphenol ICC (Commercial Products) - Connector Type: Modular / Ethernet Connectors - Role: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: RJHSE5480 **Pins:** - ~ [pin 11] - ~ [pin 10] - ~ [pin 9] - ~ [pin 12] - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - SHIELD [pin S1] - SHIELD__1 [pin S2] ### J5 — [RJHSE538802](https://www.flux.ai/vasy_skral/rjhse538802~gp.md) - Role Details: PLACEHOLDER - swap to Adam Tech MTJ-88TUX1-FS2-PG2T-L5-C6A-HT (Cat6A). RevB3: RS-485 defaults to pins 7/8; shields to GND; LED pins left NC. - Manufacturer Part Number: RJHSE538802 - Manufacturer Name: Amphenol ICC (Commercial Products) - Package: Through Hole - Datasheet URL: https://cdn.amphenol-icc.com/media/wysiwyg/files/drawing/rjhsex38x02.pdf - Part Type: Connector - Role: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - LED1-1- [pin 9] - LED1-1+ [pin 10] - LED1-2- [pin 11] - LED1-2+ [pin 12] - LED2-1- [pin 21] - LED2-1+ [pin 22] - LED2-2- [pin 23] - LED2-2+ [pin 24] - P1-1 [pin 1] - P1-2 [pin 2] - P1-3 [pin 3] - P1-4 [pin 4] - P1-5 [pin 5] - P1-6 [pin 6] - P1-7 [pin 7] - P1-8 [pin 8] - P2-1 [pin 13] - P2-2 [pin 14] - P2-3 [pin 15] - P2-4 [pin 16] - P2-5 [pin 17] - P2-6 [pin 18] - P2-7 [pin 19] - P2-8 [pin 20] - Shield [pin SH-1] - Shield [pin SH-2] ### J6 — [RJHSE5480](https://www.flux.ai/adrian95/rjhse5480~mzu.md) - Package: Through Hole - Manufacturer Name: Amphenol ICC (Commercial Products) - Connector Type: Modular / Ethernet Connectors - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: RJHSE5480 - Role: Connector - Role Details: PLACEHOLDER - swap to Adam Tech MTJ-88TUX1-FS2-PG2T-L5-C6A-HT (Cat6A). RevB3: RS-485 defaults to pins 7/8 (brown pair). Shields to GND. Unused pins unconnected. - Part Type: Connector - Datasheet URL: https://cdn.amphenol-cs.com/media/wysiwyg/files/documentation/datasheet/inputoutput/io-modjack-rjhse.pdf **Pins:** - ~ [pin 11] - ~ [pin 10] - ~ [pin 9] - ~ [pin 12] - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - SHIELD [pin S1] - SHIELD__1 [pin S2] ### K2 — [G6HU-2](https://www.flux.ai/kicad-part-library/g6hu-2~vqs.md) - Package: Through Hole - Role Details: DPDT latching relay to isolate RS-485 and termination from cable during HF/TIA measurements - Datasheet URL: http://cdn-reichelt.de/documents/datenblatt/C300/G6H%23OMR.pdf - Part Type: Relay THT - Manufacturer Name: Texas Instruments Inc. - Package or Case Code: Relay_DPDT_Omron_G6H-2 - Role: Relay - Manufacturer Part Number: G6HU-2 **Pins:** - ~ [pin 9] - ~ [pin 10] - ~ [pin 2] - ~ [pin 1] - ~ [pin 4] - ~ [pin 8] - ~ [pin 3] - ~ [pin 7] - NC [pin 6] - NC [pin 5] ### LED1 — [LTST-C190KRKT](https://www.flux.ai/adrian95/ltst-c190krkt~3pw.md) - Role Details: CHARGE LED (blink charging, solid charged) / FAIL LED status - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: LTST-C190KRKT - Manufacturer Name: Lite-On Inc. - Part Type: LED - Role: Indicator - Datasheet URL: https://optoelectronics.liteon.com/upload/download/DS-22-99-0151/LTST-C190KRKT.pdf - Package: 0603 **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [LTST-C190KRKT](https://www.flux.ai/adrian95/ltst-c190krkt~3pw.md) - Package: 0603 - Part Type: LED - Manufacturer Name: Lite-On Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: LTST-C190KRKT - Role: Indicator - Datasheet URL: https://optoelectronics.liteon.com/upload/download/DS-22-99-0151/LTST-C190KRKT.pdf - Role Details: CHARGE LED (blink charging, solid charged) / FAIL LED status **Pins:** - A [pin 2] - K [pin 1] ### LED3 — [SML-LX0603GW-TR](https://www.flux.ai/adrian95/sml-lx0603gw-tr~uqi.md) - Manufacturer Name: Lumex Opto/Components Inc. - Part Type: LED - Role Details: COMM_OK LED - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SML-LX0603GW-TR - Role: Indicator - Package: 0603 - Datasheet URL: https://www.lumex.com/spec/SML-LX0603GW-TR.pdf **Pins:** - A [pin 2] - K [pin 1] ### LED4 — [LTST-C190TBKT](https://www.flux.ai/adrian95/ltst-c190tbkt~9us.md) - Manufacturer Name: Lite-On Inc. - Part Type: LED - Role Details: PASS LED - Role: Indicator - Manufacturer Part Number: LTST-C190TBKT - License: https://creativecommons.org/licenses/by/4.0/ - Package: 0603 - Datasheet URL: https://optoelectronics.liteon.com/upload/download/DS-22-99-0224/LTST-C190TBKT.PDF **Pins:** - A [pin 2] - K [pin 1] ### U2 — [MAX3485ESA+](https://www.flux.ai/lcsc/max3485esaplus~baoy.md) - Package: SO-8 - Package or Case Code: SO-8_L4.9-W3.9-P1.27-LS6.0-BL - JLCPCB Part Class: Extended Part - Manufacturer Part Number: MAX3485ESA+ - Role Details: RS-485 half-duplex transceiver for pair-agile remote comm - Role: Transceiver - LCSC Part Number: C1545222 - Manufacturer Name: MAXIM(美信) **Pins:** - ~{RE} [pin 2] - A [pin 6] - B [pin 7] - DE [pin 3] - DI [pin 4] - GND [pin 5] - RO [pin 1] - VCC [pin 8] ### U4 — [SN74CBTLV3257DBQR](https://www.flux.ai/adrian95/sn74cbtlv3257dbqr~5qs.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Pair-agile routing matrix for RS-485 lines to RJ45 pairs - Manufacturer Name: Texas Instruments - Manufacturer Part Number: SN74CBTLV3257DBQR - Datasheet URL: https://www.ti.com/lit/ds/symlink/sn74cbtlv3257.pdf - Role: Analog Switch - Part Type: Integrated Circuit - Package: SSOP-16 **Pins:** - ~OE [pin 15] - 1A [pin 4] - 1B1 [pin 2] - 1B2 [pin 3] - 2A [pin 7] - 2B1 [pin 5] - 2B2 [pin 6] - 3A [pin 9] - 3B1 [pin 11] - 3B2 [pin 10] - 4A [pin 12] - 4B1 [pin 14] - 4B2 [pin 13] - GND [pin 8] - S [pin 1] - VCC [pin 16] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/tompowers/other-sapphire-wall-e-325e~oa](https://www.flux.ai/tompowers/other-sapphire-wall-e-325e~oa).* --- *Generated from [https://www.flux.ai/tompowers/other-sapphire-wall-e-325e~oa](https://www.flux.ai/tompowers/other-sapphire-wall-e-325e~oa)*