Hub-Module LEDs Front Panel ---------------------------------- Original Rev. 6-Apr-2015 Current Rev. 16-Jun-2016 This note collects the information about the LED displays that are used on the front panel of the Hub Module. The Hub Module includes front panel LEDs to indicate the following: - Four that are required by the ATCA format and are managed by the IPMC mezzanine: Mandatory LED_1 Optional LED_2 Optional LED_3 Mandatory Blue - Two general health/rationality LEDs: Has the IPMC Enabled the Pay Load Power ? Are all of the Hub's DCDC Converters running OK ? - Five LEDs for the ROD Mezzanine: - Three LEDs for the Hub Module that are managed by the Hub's Virtex FPGA. - Six RJ-45 Ethernet connectors with 2 LEDs each: RJ1 Upper/Right for This Hub's IPMC RJ1 Lower/Left for This Hub;s ROD Mezzanine FPGA RJ2 Upper/Right for This Hub's Switch Chip "C" RJ2 Lower/Left for This Hub's Switch Chip "A" RJ3 Upper/Right for This Hub's Switch Chip "B" RJ3 Lower/Left for This Hub's Switch Chip "B" - Two LEDs each for 20 other Ethernet connections. 12 Switch Ports to the FEXs 1 This Hub's Switch Port to the Other Hub's FPGA 1 This Hub's Switch Port to This Hub's FPGA 1 This Hub's FPGA Phys to the Other Hub's Switch 1 This Hub's FPGA Phys to This Hub's Switch 1 Switch Chip "A" side of A <--> B connection 1 Switch Chip "B" side of A <--> B connection 1 Switch Chip "B" side of B <--> C connection 1 Switch Chip "C" side of B <--> C connection This is a total of 66 front panel LEDs. The 4 ATCA LEDs use the 3mm Mentor 1271.100x "single column" light pipes to reach the front panel. The 2 General Health LEDs also use the same 3mm Mentor 1271.100x light pipes. The 5 ROD LEDs, and the 3 Hub LEDs, and the 40 "Other Ethernet Connections" LEDs use the 2mm Mentor 1296.10x4 light pipe array. This is a 4 column light pipe array. They are layed out in a 4x2 array and a 4x10 array. The Hub Module uses SMD LEDs on side 1 of the PCB and light pipe assemblies to route them to the front panel. This design is driven by the need to place the required ATCA LEDs in specific locations and to use very little space along the West edge of the card for these LEDs. The LEDs are in two categories: single column and 4 column. Note that in this document the words row and column refer to viewing the Hub Module from the front as it normally looks when plugged into a crate, i.e. columns are vertical along the long axis of the front panel. The single column setup has a 3.0 mm diameter light pipe that is centered 5.08 mm to the right of the side 1 surface of the PCB. This uses a Mentor 1271.100x light pipe and an Osram LED: LxT673 P-LLC-2 3.0x3.4 package Vf Blue typ 2.9/3.1 at 5/10 mA Hyper TOPLED Blue, Green Vf Grn typ 2.8/3.0 at 5/10 mA 2006 LxT676 P-LLC-2 3.0x3.4 package Vf Red typ 1.9/1.95 at 5/10 mA Hyper TOPLED Red, Yellow Vf Yel typ 1.9/1.95 at 5/10 mA 2007 Many other Osram parts in the 2-PLCC Advanced Power TOPLEDs are available. Mentor seems to want 120 deg clear colorless flat "lens" to get light into these single column light pipes. The 4 column setup has 1.95 mm Mentor 1296.10x4 light pipes. The first light pipe is centered 2.54 mm to the right of the side 1 surface of the PCB. The next light pipe is centered 2.54 mm to the right of the first one and so on. Center to Center the rows are spaced by 5.08 mm. This provides some limited space for labels. This 4 column setup with the Mentor 1296.10x4 light pipe array uses an Osram LED in the 0805 case size package: LG R971 green Vf about 2.0 to 2.1 at 5 to 10 mA LS R976 super red Vf about 1.9 at 5 to 10 mA LY R976 yellow Vf about 1.9 at 5 to 10 mA Many other 0805 case size types are available from Osram for example: LH R974 hyper red. Mentor seems to want 160 deg colorless diffuse flat "lens" to get light into these four column light pipes. Ed needs a blue LEDs in this 4 column setup for the ROD display. Osram does not seem to make one in the correct package to work with the Mentor 1296.10x4 light pipes. The problem is to find a quality blue LED in the 0805 package size with the right optics to put light into the light pipe and the same suggested pcb layout pattern. So far the Avago HSMR-C170 looks OK except for the PCB layout pattern. LEDs Driven by the IPMC Mezzanine: ---------------------------------- These are the 4 ATCA Status LEDs that are driven by the IPMC mezzanine card. I believe that the IPMC mezzanine directly drives the anodes of these LEDs through series resistors and that the cathodes of these LEDs are just tied to ground. See also the 2 IPMC Ethernet LEDs that are listed below under "not driven". LED Ref Desgntr Display Source -Pin ------- -------------------------- --------------------- LE1 ATCA Mandatory Red LED_1 IPMC Mezz Socket 104 LE2 ATCA Optional Green LED_2 IPMC Mezz Socket 105 LE3 ATCA Optional Red LED_3 IPMC Mezz Socket 106 LE4 ATCA Mandatory Blue IPMC Mezz Socket 103 LEDs Driven by the Switch Chips: -------------------------------- The switch chips used in the Hub module can drive up to 4 LEDs per ethernet port. Control registers in these chips allow you to select what types of information about a given ethernet port are displayed on its LEDs. The Hub module provides 2 LEDs per switch chip ethernet port. By default one of these LEDs shows if the port is operating at 10/100 vs 1000 speed and the other LED shows if a connection exists on that port and when a connection exists whether or not it is currently moving data. In the following table for LE5:LE40, the Speed LED is Green and the Link Activity LED is Yellow. In the section of the table that describes the front panel RJ-45 connectors recall that these are TE Connectivity part number 1888653-4 "condo" connectors. The -4 indicates the LED colors for each socket: TE Part No. LED_1 LED_2 LED_3 LED_4 ----------- ----- ----- ----- ----- 1888653-4 Green Green Yellow Yellow Note, if we change which switch port is connected to which Base Interface target then we should also change the connections to these LEDs to keep them in rational BI Channel order. Recall which 53128 Switch Chip LED Pin is used to indicate what information about a given 53128 Switch Chip Port: Link Speed Link Active ------------------------ ------------------------ Port Pin Num Pin Name Port Pin Num Pin Name ---- ------- -------- ---- ------- -------- 7 168 LEDP0 7 170 LEDP1 6 174 LEDP4 6 175 LEDP5 5 178 LEDP8 5 179 LEDP9 4 184 LEDP12 4 185 LEDP13 3 189 LEDP16 3 190 LEDP17 2 194 LEDP20 2 195 LEDP21 1 198 LEDP24 1 199 LEDP25 0 256 LEDP28 0 1 LEDP29 These are the switch chip port numbers as defined in the 53128 documentation. The switch chip LEDs are arranged on the Hub module front panel in the following way: LED Ref Desgntr Display Source -Pin ------- ------------------------ -------------------------- LE5 BI "Channel 2" Speed Grn Sw Chip B Port 5 LED8-178 LE6 BI "Channel 2" Lnk-Act Yel Sw Chip B Port 5 LED9-179 LE7 BI Channel 3 Speed Grn Sw Chip C Port 5 LED8-178 LE8 BI Channel 3 Lnk-Act Yel Sw Chip C Port 5 LED9-179 LE9 BI Channel 4 Speed Grm Sw Chip C Port 4 LED12-184 LE10 BI Channel 4 Lnk-Act Yel Sw Chip C Port 4 LED13-185 LE11 BI Channel 5 Speed Grn Sw Chip C Port 3 LED16-189 LE12 BI Channel 5 Lnk-Act Yel Sw Chip C Port 3 LED17-190 LE13 BI Channel 6 Speed Grn Sw Chip C Port 2 LED20-194 LE14 BI Channel 6 Lnk-Act Yel Sw Chip C Port 2 LED21-195 LE15 BI Channel 7 Speed Grn Sw Chip C Port 1 LED24-198 LE16 BI Channel 7 Lnk-Act Yel Sw Chip C Port 1 LED25-199 LE17 BI Channel 8 Speed Grn Sw Chip C Port 0 LED28-256 LE18 BI Channel 8 Lnk-Act Yel Sw Chip C Port 0 LED29-1 LE19 BI Channel 9 Speed Grn Sw Chip A Port 5 LED8-178 LE20 BI Channel 9 Lnk-Act Yel Sw Chip A Port 5 LED9-179 LE21 BI Channel 10 Speed Grn Sw Chip A Port 4 LED12-184 LE22 BI Channel 10 Lnk-Act Yel Sw Chip A Port 4 LED13-185 LE23 BI Channel 11 Speed Grn Sw Chip A Port 3 LED16-189 LE24 BI Channel 11 Lnk-Act Yel Sw Chip A Port 3 LED17-190 LE25 BI Channel 12 Speed Grn Sw Chip A Port 2 LED20-194 LE26 BI Channel 12 Lnk-Act Yel Sw Chip A Port 2 LED21-195 LE27 BI Channel 13 Speed Grn Sw Chip A Port 1 LED24-198 LE28 BI Channel 13 Lnk-Act Yel Sw Chip A Port 1 LED25-199 LE29 BI Channel 14 Speed Grn Sw Chip A Port 0 LED28-256 LE30 BI Channel 14 Lnk-Act Yel Sw Chip A Port 0 LED29-1 LE31 SW to Hub FPGA Speed Grn Sw Chip B Port 4 LED12-184 LE32 Sw to Hub FPGA Lnk-Act Yel Sw Chip B Port 4 LED13-185 LE33 Sw B to Sw A Speed Grn Sw Chip B Port 2 LED20-194 LE34 Sw B to Sw A Lnk-Act Yel Sw Chip B Port 2 LED21-195 LE35 Sw B to Sw C Speed Grn Sw Chip B Port 3 LED16-189 LE36 Sw B to Sw C Lnk-Act Yel Sw Chip B Port 3 LED17-190 LE37 Sw A to Sw B Speed Grn Sw Chip A Port 7 LED0-168 LE38 Sw A to Sw B Lnk-Act Yel Sw Chip A Port 7 LED1-170 LE39 Sw C to Sw B Speed Grn Sw Chip C Port 7 LED0-168 LE40 Sw C to Sw B Lnk-Act Yel Sw Chip C Port 7 LED1-170 - And now the RJ-45 LEDs driven by the Switch Chips LED_59 RJ2-LED2 Grn RJ2 Upper or Right Sw Chip C Port 6 LED4-174 LED_60 RJ2-LED3 Yel Sw Chip C Port 6 LED5-175 LED_61 RJ2-LED1 Grn RJ2 Lower or Left Sw Chip A Port 6 LED4-174 LED_62 RJ2-LED4 Yel Sw Chip A Port 6 LED5-175 LED_63 RJ3-LED2 Grn RJ3 Upper or Right Sw Chip B Port 7 LED0-168 LED_64 RJ3-LED3 Yel Sw Chip B Port 7 LED1-170 LED_65 RJ3-LED1 Grn RJ3 Lower or Left Sw Chip B Port 6 LED4-174 LED_66 RJ3-LED4 Yel Sw Chip B Port 6 LED5-175 LEDs Driven by the Phys Chips on the Hub Module: ------------------------------------------------ The two KSZ9031RNX Phys chips on the Hub Module each drive two LEDs. These LEDs are not directly driven by the Phys chips but rather they are driven through a buffer. The Hub's Phys chip LEDs are arranged on the front panel in the following way: LED Ref Desgntr Display Source -Pin ------- --------------------- -------------------------- LE41 Hub FPGA to Sw Link Grn Phys U22 LED2-15 LE42 Hub FPGA to Sw Active Yel Phys U22 LED1-17 LE43 Hub FPGA to BI Ch 2 Link Grn Phys U21 LED2-15 LE44 Hub FPGA to BI Ch 2 Active Yel Phys U21 LED1-17 LEDs Driven by the ROD Mezzanine Card: ---------------------------------------- The ROD mezzanine controls two types of LEDs on the Hub Module. It controls 5 LEDs that indicate the "Status" of the ROD and it controls two LEDs that indicate the operation of the ROD's Ethernet Phys chip which is also a KSZ9031RNX. In all 7 cases the Hub module provides buffering for the 1V8 logic control signals that come from the ROD for these LEDs. In all 7 cases the LED is illuminated when the control signal from the ROD is Low. Note that an 8th control signal from the ROD is used to set the state of the front panel Lemo connector on the Hub. The Hub provides an open collector driver for this Lemo. When this control signal from the ROD is Hi then this open collector Lemo driver pulls down. LED Ref Desgntr Display Source -Pin ------- ------------------------------------ --------------- LED_57 RJ1-LED1 RJ1 Lower or Left Lnk Grn MegArray S1 B1 LED_58 RJ1-LED4 RJ1 Lower or Left Act Yel MegArray S1 B2 LED_45 Prog_Done_LED_B Green MegArray S1 B3 J1 LEMO not an LED MegArray S1 B4 LED_46 Pwr_Good_LED_B Green MegArray S1 C1 LED_47 SMB_Alert_LED_B RED MegArray S1 C2 LED_48 GP_LED_B Blue MegArray S1 C3 LED_49 Run_LED_B Blue MegArray S1 C4 ROD MegArray Conn Specification --------------------------------------------- MegArray Old New LED S1 Pin# Name Current Name Color -------- ------ ---------------- ------ B1 LED-0 Phy_LED2_B Green B2 LED-Y Phy_LED1_B Yellow B3 LED-B Prog_Done_LED_B Green B4 LEMO-0 LEMO not an LED -- C1 LED-1 Pwr_Good_LED_B Green C2 LED-R SMB_Alert_LED_B RED C3 LED-G GP_LED_B Blue C4 LEMO-1 Run_LED_B Blue LEDs Driven by the Hub Module's FPGA: ------------------------------------- The Hub Module's FPGA directly controls 3 Front Panel LEDs using 3 of its Select I/O signals. The Hub provides buffers between its FPGA pins and these LEDs. The Select I/O signals that are used to control these 3 LEDs are listed in the file: hub_0_ab_fpga_select_io_usage.txt LED Ref Desgntr Display Source -Pin ------- --------------------- -------------------------- LE50 Hub FPGA LED Grn Hub FPGA Select I/O ?? LE51 Hub FPGA LED Yel Hub FPGA Select I/O ?? LE52 Hub FPGA LED Red Hub FPGA Select I/O ?? LEDs NOT Driven by the IPMC Card's Ethernet Connection: ----------------------------------------------------------- Besides the 4 "ATCA Status" LEDs listed above, the IPMC also could have driven LEDs to indicate the operation of its Ethernet circuit. The IPMC uses a National/TI DP83848 Phys chip which does directly drive LED but these pins were not routed out out on the IPMC to its edge connector. So as far as I know we can not directly see the status of the ethernet connection to the IPMC mezzanine card. There is still the issue of what to do with these LEDs in the Hub's RJ-45 Ethernet connector for the IPMC. LED Ref Desgntr Display Source -Pin ------- --------------------- -------------------------- LED_55 RJ1-LED2 RJ1 Upper or Right Green --- LED_56 RJ1-LED3 RJ1 Upper or Right Yellow --- Two Rationality LEDs: --------------------- There are two front panel LEDs that show the general health of the Hub Module. These two LEDs indicate to the user whether or not it is "rational" to consult the other LEDs on the card. - One of these LEDs (LED 53) shows whether or not the Isolated +12V supply is running. - The other LED (LED 54) shows whether or not all of the power buses on the Hub Module are operating within tolerance. The cathode of the Iso +12V LED is connected to ground. The anode of this LED is connected through a series resistor to the Iso_12V bus. This is LED 53. The anode of the All Power OK LED is tied through a series resistor to the BULK_3V3 bus. The cathode of this LED is tied to the source of the low active All Power Is OK signal, i.e. U2961 pin 4. This is LED 54. Update on the LED and Light-Pipe components to purchase: -------------------------------------------------------- Note compared to what is written above, the 2-PLCC size blue LED is not going to be an Osram part because it is not recommended for new designs. Instead an Avago part is used. There is only one of these used per Hub card. Notice that in general the 2-PLCC LEDs are just a single placement per Hub card. Front Panel LED parts that are being purchased: LEDs for the Single column light pipe 2-PLCC size 3x Green LED_673_GREEN osram_green_LTT673 LT T673-Q1R2-25-Z dk = 475-2672-1-ND 1x Blue LED_HSMN-A100_BLUE avago_blue_HSMN-A100 HSMN-A100-P00J1 dk = 516-1464-1-ND 1x Red LED_676_RED osram_red_LST676 LS T676-R1S1-1-Z dk = 475-2683-1-ND 1x Yellow LED_676_YELLOW osram_yellow_LYT676 LY T676-S1T1-26-Z dk = 475-2665-1-ND LEDs for the 4 column light pipe 0805 size 23x Green LED_LGR971_GRN osram_green_0805_lgr971 LG R971-KN-1 dk = 475-1410-1-ND 2x Blue LED_HSMR_C170_BLUE avago_blue_0805_hsmr-c170 HSMR-C170 dk = 516-1445-1-ND 2x Red LED_LSR976_RED osram_red_0805_lsr976 LS R976-NR-1 dk = 475-1278-1-ND 21x Yellow LED_LYR976_YEL osram_yellow_0805_lyr976 LY R976-PS-36 dk = 475-2560-1-ND Single Column Light Pipe Mentor 1271.1001 Newark 69W0726 $1.65 1271.1002 Newark 69W0727 $1.57 1271.1003 Newark 69W0728 $1.75 The Hub requires one of each of the above 3 types of single column light pipes. 4 Column Light Pipe Mentor 1296.1024 Newark 69W0799 $5.35 Note that we use 5 of these to make the 10 row display and 1 more for the ROD/Hub LEDs. 6 total needed per Hub card. Update on the LEDs - Do we need the 2-PLCC size parts ?? -------------------------------------------------------- Is the light output from the 0805 size part about the same as the light output from the 2-PLCC size part ?? If so then can we eliminate the 2-PLCC size LEDs and use the smaller 0805 size LEDs with the single column light pipes ? The push for doing this is that we are using only a few of the 2-PLCC size LED and often only one of a given type. Look up the light outputs and lens types: LEDs for the Single column light pipe 2-PLCC size 3x Green LED_673_GREEN osram_green_LTT673 LT T673-Q1R2-25-Z 125 mcd RndFCC120 1x Blue LED_HSMN-A100_BLUE avago_blue_HSMN-A100 HSMN-A100-P00J1 70 mcd RndFCC120 1x Red LED_676_RED osram_red_LST676 LS T676-R1S1-1-Z 125 mcd RndFCC120 1x Yellow LED_676_YELLOW osram_yellow_LYT676 LY T676-S1T1-26-Z 267 mcd RndFCC120 LEDs for the 4 column light pipe 0805 size 23x Green LED_LGR971_GRN osram_green_0805_lgr971 LG R971-KN-1 26 mcd RctFWD160 2x Blue LED_HSMR_C170_BLUE avago_blue_0805_hsmr-c170 HSMR-C170 55 mcd RctFWD155 2x Red LED_LSR976_RED osram_red_0805_lsr976 LS R976-NR-1 104 mcd RctFWD160 21x Yellow LED_LYR976_YEL osram_yellow_0805_lyr976 LY R976-PS-36 162 mcd RctFWD160 RndFCC120 = Round, Flat top, Colorless, Clear, 120 degree RctFWD160 = Rectangle, Flat top, White, Diffuse, 160 degree The 2-PLCC package is about 1.7 ti 2.1 mm tall with the LED surface down under the lens by about 0.7 to 0.9 mm. The 0805 package is about 0.7 to 0.9 mm tall with no specification for the location of the LED surface. For the 4 column light pipes Mentor says to use LEDs R4-R7 R14-R16. These are: R4 LH R974 0805 RctFWD160 R5 LG R971 0805 RctFWD160 see above R6 LY R971 0805 RctFWD160 R7 LO R971 0805 RctFWD160 R14 LS R976 0805 RctFWD160 see above R15 LY R976 0805 RctFWD160 see above R16 LO R976 0805 RctFWD160 So the recommended 0805 LEDs for the 4 column light pipes are quite different than the recommended 2-PLCC LEDs for the single column light pipes. But the only way to know if they will work is to try them. Using the 0805 LED for all applications will pull 4 part types, 3 of which are single applications, out of the Hub parts list. The decision is to build the initial prototype cards with all 0805 LEDs.