====== PCBs ======

====== NT5U0125 - A0671115 01 (Telephony PCP) ======
[[https://raw.githubusercontent.com/muccc/millennium/master/pics/boards/NT5U0125_telephony_descr.jpg|{{https://raw.githubusercontent.com/muccc/millennium/master/pics/boards/NT5U0125_telephony_descr.jpg?700}}]]
^ Part ^ Chip ^ Label ^ Description ^ Comment   ^
| U1   | W0048H \\ SFH 615A-3 | | Transistor Output Optocoupler | |
| U2   | W0048H \\ SFH 615A-3 | | Transistor Output Optocoupler | |
| U3   | W0048H \\ SFH 615A-3 | | Transistor Output Optocoupler | |
| U4   | W0048H \\ SFH 615A-3 | | Transistor Output Optocoupler | |
| U5   | //f// P0136SF \\ MM74HC151N \\ MC74HC151N  | | 8-Channel Digital Multiplexer | |
| U6   | W0048H \\ SFH 615A-3 | | Transistor Output Optocoupler | |
| U7   | W0048H \\ SFH 615A-3 | | Transistor Output Optocoupler | |
| U8   | W0048H \\ SFH 615A-3 | | Transistor Output Optocoupler | |
| U9   | //A// QMV155B \\ X50 \\ 9851 | | FIXME | |
| U10  | //A// QMV97AP5 \\ X25A \\ 9711 | | FIXME | |
| U12  | //Philips// SA 5230N \\ J74582A \\ Jnr149F | | Low Voltage Operational Amplifier | |
| U13  | //Philips// A4123542 \\ AU7511 3 \\ kS02163 \\ PCD3349A | A0772470 \\ REV 1 \\ MFG 02 06 14 | 8-bit microcontroller with DTMF generator :?: | Removable |
| U14  | //f// P0118SH \\ MM74HC32N \\ MC74HC32N | | Quad 2-Input OR-Gate | |
| U15  | //ST// M74HC14B1 \\ W991V0142 | | HEX Schmitt Inverter | |
| U16  | //f// P0124SD \\ MM74HC4051N \\ MC74HC051N | | 8-Channel Analog Multiplexer | |
| U17  | W0048H \\ SFH 615A-3 | | Transistor Output Optocoupler | |
| U18  | //M// LM2903N \\ CKUF \\ 0002 | | Low-power dual voltage comparator | |
| U20  | W0048H \\ SFH 615A-3 | | Transistor Output Optocoupler | |
| U21  | ST M74HC14B1 \\ W991V0142 | | HEX Schmitt Inverter | |
| U22  | //f// P0118SD \\ MM74HC08N \\ MC74HC08N | | Quad 2-Input AND Gate | |
| U23  | | | | unpopulated |

^ Conn ^ Whereto? ^
| J1A  | Keypad |
| J2   | to PCP |
| J10B | Handset |
| J33  | Unknown, not populated |
| J34  | to Data-Jack |

====== NT5U0130 - A0685005 REL 2 (Control PCP) ======
[[https://raw.githubusercontent.com/muccc/millennium/master/pics/boards/NT5U0130_control_descr.jpg|{{https://raw.githubusercontent.com/muccc/millennium/master/pics/boards/NT5U0130_control_descr.jpg?700}}]]
^ Part ^ Chip ^ Label ^ Description ^ Comment   ^
| U1   | MAX690A \\ ESA \\ 117 | | Precision Supply-Voltage Monitor | |
| U2   | //ST// M29F040B \\ 90K6 \\ 5BS0X0216 | A4123567 \\ FW2.11 MP MC \\ U2 | Firmware :?: | removable |
| U3   | //EPSON// 24.5760 E M \\ 2PH \\ 2117G | | Crystal | |
| U4   | 1161A1 \\ M5M5408BFP \\ -70HI | | 4194304-BIT (524288-WORD BY 8-BIT) CMOS STATIC RAM | Must be powered to keep its content - perhaps the configuration is stored here? |
| U6   | //ZILog// SL1960 \\ Z8S18020VEC \\ Z180 MPU \\ 0152 37 | A0685004 \\ REV 22 \\ MFG 02 06 28 | Zilog Z180 CPU | |
| U8   | //TI// 98CNTHK \\ ABT623 | | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS :?: | |
| U9   | //AMD// MACH231SP \\ -12YC -14YI \\ 9934BPA B | 55EA | High-performance ee CMOS Programmable Logic | |
| U10  | //f// P07SD \\ 74ACT240 | | Octal Buffer/Line Driver with 3-STATE Outputs | |
| U11  | //ON// ACT273 \\ CPAM0146 | | Octal D Flip-Flop :?: | |
| U12  | //ON// ACT273 \\ CPAM0146 | | Octal D Flip-Flop :?: | |
| U13  | //ON// ACT273 \\ CPAM0146 | | Octal D Flip-Flop :?: | |
| U14  | //f// p22SB \\ 74ACT241 | | Octal Buffer/Line Driver with 3-STATE Outputs | |
| U15  | //ON// ACT273 \\ CPAM0146 | | Octal D Flip-Flop :?: | |
| U16  | //ST// M27C801 \\ 120K6 F \\ B580A9922 | 737874 \\ VW2.0A \\ U16 | [[millennium:voiceware|Voiceware/-prompts]] | removable |
| U17  | //ST// 93C66 6 \\ K033M | | 4096-Bit Serial CMOS EEPROM (MICROWIRE™ Synchronous Bus) | Keeps information even without power - could be storage for CDRs? |
| U18  | //TI// 93DT5TK \\ ALS03B | | Quadruple 2-Input Positive NAND-Buffers with Open-Collector Outputs :?: | |
| U19  | //f// P18SB \\ 74ACT04 | | Hex Inverter | |
| U20  | //f// P09SB \\ 74ACT373 | | Octal Transparent Latch with 3-STATE Outputs | |
| U21  | //TI// 97JDFHK \\ ACT32 | | Quadruple 2-Input Positive-OR Gates | |
| U22  | //TI// AD1Y5K \\ LM2902 | | Low Power Quad Operational Amplifiers | |
| U23  | //TDK// 73K324l-28IH \\ 0C0201 \\ 2185403 | | CCITT V.22bis, V.22, V.21, V.23, Bell 212A Single-Chip Modem | |
| U24  | //M// ACT08 \\ XAE928 | | Quadrupe 2-Input Positive-AND Gates| |
| U26  | //ST// M27C801 \\ 120K6 F \\ B580A9922 | 737877 \\ VW2.0A \\ U26 | [[millennium:voiceware|Voiceware/-prompts]] | removable |
| U27  | //NEC// D7759GC \\ 9843PP003 | | ADPCM SPEECH SYNTHESIZER LSIs | Used for [[millennium:voiceware|Voiceware/-prompts]] |
| U28  | //EPSON// 7.1590 E M \\ 2PH 2132G | | Crystal | |
| U29  | 75T204-IL \\ TDK-PA0029 \\ 19886.02 | | 5V Low-Power Subscriber DTMF Receiver | |
| U30  | //f// P18SB \\ 74ACT04 | | Hex Inverter | |
| U31  | //ON// MC33163DW \\ XAA0209 | | Power Switching Regulator | |
| U33  | //f// P18SB \\ 74ACT04 | | Hex Inverter | |
| U34  | 143 \\ 121AI | | Micropower Low Dropout Regulators with Shutdown :?: | |
| U35  | //ON// ACT273 \\CPAMO146 | | Octal D Flip-Flop :?: | |
| U36  | //TI// TL16C550CIFN \\ 1CA842W | | Asynchronus Communications Element With Autoflow Control | |
| U37  | | | | unpopulated |
| X1   | //ST// M29F040B \\ 90K6 \\ 5BS0X0216 | A4123568 \\ FW2.11 MP MC \\ X1 | Firmware :?: | removable |

^ Conn ^ Whereto? ^
| J1   | unknown |
| J2   | unknown |
| J3   | unpopulates |
| J4   | to Control PCP | 
| J5   | Rear Terminal |
| J6   | Card Reader |
| J7   | Line Display |
| J8   | Coin Validator |
| J12  | unknown |
| J13  | unknown |
| J14  | unknown |
| J15  | unknown |

====== Noritake CU20026SCPB-T23A (Display) ======
[[https://raw.githubusercontent.com/muccc/millennium/master/pics/boards/CU20026SCPB-T23A-front.jpg|{{https://raw.githubusercontent.com/muccc/millennium/master/pics/boards/CU20026SCPB-T23A-front.jpg?400}}]]

The Noritake CU20026SCPB-T23A is a 20 x 2 VFD Module - the display of the phone. As there is no official datasheet to the display, it seems like this display has been custom-made for Nortel.

There is a datasheet for a similar display, outlining the characters that can be displayed: 

===== Connector Pinout =====
^ ^^^^^^  Notch  ^ ^^^^^^
| **1** \\ D7  | **3** \\ D6  | **5** \\ D5  | **7** \\ D4  | **9**  \\ D3  | **11** \\ D2  | **13** \\ D1  | **15** \\ D0  | **17** \\ X1  | **19** \\ X2 | **21** \\ X3  | **23** \\ X4  | **25** \\ X5  |
| **2** \\ +5V | **4** \\ +5V | **6** \\ +5V | **8** \\ GND | **10** \\ GND | **12** \\ GND | **14** \\ GND | **16** \\ GND | **18** \\ GND | **20** \\ X6 | **22** \\ GND | **24** \\ GND | **26** \\ GND |

===== Code =====
  * There is a Arduino-Sketch for testing the display [[https://github.com/muccc/millennium/blob/master/code/displaytest/displaytest.ino|here]]. It is - as well as the pinout and the images of the display - provided by [[http://jim.akesons.com/|Jim Akesons]].
  * Because our test-device is missing its display, there is a arduino-based emulator, that returns the display-contents over a serial connection. You can find the code [[https://github.com/muccc/millennium/blob/master/code/displayemulator/displayemulator.ino|here]].

====== Unused (Keep for later) ======
| U25  |
| U32  | 
| U38  |
| U39  |
| J9   |
| J11  |
| J16  |
| J17  |
| J18  |
| J19  |
| J20  |
| J21  |
| J22  |
| J23  |
| J24  |
| J25  |
| J26  |
| J27  |
| J28  |
| J29  |
| J30  |
| J31  |
| J32  |
| J35  |
| J36  |
| J37  |
| J38  |
| J39  |