■NCU PCB circuit diagram
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| +24V |
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A |
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| D7 |
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| 1SS120 |
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| CML |
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| 6B |
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| SW1 | 12 |
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| 11 |
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| L3 |
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| R7 | 100 | 2W |
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| 2 |
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| 7 |
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| 1 |
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| @C3 | C10 | |
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| @T1 |
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| + | 35V | |
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| D4 |
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| R4 | 6.2k |
| C2 | C102 |
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| XX 3 |
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| NC |
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| XX 4 |
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| L2 |
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| JW1 |
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| (LINE) |
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| FG 7 |
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| S1ZB60 | + |
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| @R12W120 |
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| 6.2k6.2k |
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| J2 |
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| A1 | C | A |
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| R5R6 |
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| GND |
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| FG 8 |
| D5 |
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| D6 |
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| 6C | PLS |
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| PH3 |
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| J1 |
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| C1 | R2 | R3 |
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| TLP421 |
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B |
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| FG |
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| E |
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| 24k | 24k |
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FG 8 | NC |
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| CI | ||||||
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| A | ||||||
| FG | 7 | NC |
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| @PH1 | K |
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| C474 |
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| C 6B | |
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| (EXT) |
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| 250V |
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| GND |
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| D3 |
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| XX 4 |
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| AK1 |
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| AK2 |
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| 1SS120 | K |
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| XX 3 |
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| L1 |
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| GND | ||
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C4 | C103 |
| C5 |
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| 50V | C2.2 |
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| + |
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| SL |
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@R8 | 510 |
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| 6B |
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| R10 |
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| 2.7k |
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| C7 |
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| @C9 | C221 | |
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| R11 | C104 |
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| 4.3k | C101 |
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| R14 | 100k |
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| C104 |
| +5V |
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| C102 |
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| 8 |
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| R12 | 100k |
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| C104 |
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| 2 | - U1 |
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| BA10358 | 1 |
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| R16 | 100k | C101 | 3 | + |
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| C8 |
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| 4 |
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| R27 | C19 | C11 |
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| 4.7k |
| C222 |
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| GND |
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| R28 |
| @C18 | C221 |
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| 100k |
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| REF |
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R23
C104 3.3k
GND
A
RL1 6B
SF SF
B
US CAN
| P1 |
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TELRL | 11 TELRL | FB | FB |
TELSL 2C | 10 TELSL | US | CAN |
3D | 9 +24V |
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+24V |
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CML | 8 CML |
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2A | 7 CI |
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CI |
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4B | 6 GND |
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GND |
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| 5 TELOFF |
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C
D
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| TELOFF |
| C | E |
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| 6B |
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| PH2 | GND |
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| TLP320 |
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| +5V |
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| C | @Q1 | TELRL |
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| @C6 |
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| 6B |
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| E | C5395 |
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| C10 |
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| +5V |
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| @R9 |
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| 150 | @R20 |
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| 100 |
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| GND |
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| XX 1 | @L5 |
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| + | @C13 |
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| @R24 | 10V | ||
| XX 2 | @L4 |
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| 2.7k | C470 |
| XX 3 | GND |
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| GND |
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| @L7 |
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(H.S) | XX 4 |
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| @L6 |
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| GND |
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| 5 |
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| GND | NC |
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| 6 |
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| @J3 |
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| @R19 |
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| 2.7k |
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GND
These components are mounted for SF Models only.
C104 |
| @C10 | C471 | |
C104 |
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@C17 | @R22 | @R15 | 150k |
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C104 |
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24k |
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| U1 |
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| @C12 | BA10358 |
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| JW2 | |
| C101 | 6 - |
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| 7 | TELSL |
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| 5 + | 6B | |
| @R21 |
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@C15 |
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24k |
| @R13 |
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C104 |
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| 3.3k | |
| @R17 | @C14 |
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C103 | 150k |
| C471 | GND |
C104 |
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| REF |
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| REF |
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| +5V |
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L8 |
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| R18 |
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| 620 |
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FG | GND |
| REF |
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| R25 | + | C16 |
| 620 |
| 6.3V |
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| C470 | |
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JW4 |
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JW3 | GND |
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GND | GND |
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TELOFF | 2C |
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+5V | 4 +5V |
SL | 3 SL |
| 5A |
RL1 | 2 RL1 |
| 5B |
PLS | 1 PLS |
| 2B |
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C
D
1 | 2 | 3 | 4 | 5 | 6 |
Fig.
Confidential |