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## Front Panel
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## Front Panel
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| Feature | Proposal | **To be discussed (TBD)** |
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| Feature | Proposal | **To be discussed (TBD)** or Comment |
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|-----------|-------------------------|-------------------------------|
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|-----------|-------------------------|-------------------------------|
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| Data port | Number: 18 <br /> Speed: 1 and/or 10 Gbps | **20 ports if space allows?** |
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| Data ports | Number: 18 <br /> Speed: 1 and/or 10 Gbps | **20 ports if space allows?** |
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| Mgmt ports| 2 Ethernet (SFP cage + simple RJ45) <br /> USB Mini-B | **Add RS232 port as suggested?** |
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| Mgmt ports| 2 Ethernet (SFP cage + simple RJ45) <br /> USB Mini-B | **Add RS232 port as suggested?** |
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| CLK IOs | Type: SMC <br />IN_1: 10 MHz <br />IN_2: 1 PPS <br /> OUT_1: 10 MHz<br /> OUT_2: 1 PPS <br /> OUT_3: 62.5 MHz | **SMA or other instead of SMC, differencial?**<br />**Add input for calibration/TIC or re-use existing?**|
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| CLK IOs | Type: SMC <br />IN_1: 10 MHz <br />IN_2: 1 PPS <br /> OUT_1: 10 MHz<br /> OUT_2: 1 PPS <br /> OUT_3: 62.5 MHz | **SMA or other instead of SMC, differencial?**<br />**Add input for calibration/TIC or re-use existing?**|
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| General LEDs| LED_1: Power <br /> LED_2: Status <br /> LED_3: Localization | **I've added locatiozation led, as suggested**|
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| General LEDs| LED_1: Power <br /> LED_2: Status <br /> LED_3: Localization | **I've added locatiozation led, as suggested**|
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| Port LEDs | LED_1: Link / WR mode / Calib <br /> LED_2: Synced / Activity | |
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| Port LEDs | LED_1: Link / WR mode / Calib <br /> LED_2: Synced / Activity | |
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*NOTE: No support for speeds higher than 10 Gbps (coherent, 25Gbps and 100Gbps) - no real requirements, substantial cost*
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## Back panel
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| Feature | Proposal | **To be discussed (TBD)** or Comment |
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|--------------|-------------------------|-------------------------------|
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| Power switch | Switch <br /> plug | It is easier to have it in the back for the case when optional redundant/swappable power supply is implemented
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| Debugging ports| USB Mini-B FPGA <br /> USB Mini-B CPU | **Not sure whether CPU output is needed/possible**|
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*NOTE: No RS232 (as compared to the previous version)*
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## Power Supply
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* non-redundant power supply in the basic version of the WRS
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* standard connector (power/diagnostics) to allows redundant/swappable power supply
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* enough current for DWDM
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*NOTE: No redundant/swappable power supply in basic switch version - too expensive (429$ vs 80$) and would induce vendor lock-in*
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## FANs
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* Non-redundant FAN in the basic version of the WRS
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* standard connector to allow redundant/swappable FANs
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* good quality with speed measurement supported by HW
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* airflow - blow out of device to minimize airflow-induced jitter (TBD blow to front/back)
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* Fan control in PCB
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