PCB Description
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| 1. D1MBUA ( IP38 Motherboard ) |
| 2. D1TKUA ( 4 CO Trunk Card Unit ) |
| 3. D1DLUA ( 8 Digital Key Station Card ) |
| 4. D1HYUB ( 8 Hybrid Station Card ) |
| 5. D1SLUA ( 8 Analog SLT Station Card ) |
| 6. D1SLCA ( 2 Analog SLT Station Unit ) |
| 7. D1VSCA ( 2 Channels Service Card ) |
| 8. D1MFCA ( Mult Function Door Phone Card ) |
| 9. D1IPXA ( VoIP Card ) |
| 10. D1PWUA ( Power Supply Unit ) |