Otis GDA25005B1 RS14 Communication / Address Board – Original Elevator Control PCB, 12-Month Warranty, Ready-to-Ship Stock
Plug-and-play intelligence for Otis elevators. The GDA25005B1 RS14 board is the OEM communication & address module that links the car, landings and main controller—no software re-flash or harness changes required. Every unit is 100 % genuine, anti-static bagged and warehouse-tested before it reaches you, so you can swap, power-up and ride away the same day.
Key Benefits
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Exact OEM footprint—drop-in replacement, zero cabinet modification
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On-board RS14 protocol chip—restores full serial communication in seconds
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Gold-plated edge fingers—anti-corrosion for >10 yr service life
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Pre-loaded firmware—no laptop or hand-held needed on site
| Parameter |
Value |
| Model |
GDA25005B1 |
| Alternate mark |
RS14 address board |
| CPU |
16-bit Otis custom MCU |
| Supply voltage |
24 VDC ±10 % |
| Current draw |
85 mA typical / 120 mA max |
| Inputs |
8 × address dipswitch, 1 × self-test jumper |
| Outputs |
Isolated RS485 to MCB & HCB |
| Baud rate |
38.4 k fixed |
| Operating temp. |
–10 °C … +70 °C |
| Humidity |
5 % … 95 % RH non-condensing |
| PCB coating |
Conformal acrylic, flame-rated UL 94 V-0 |
| Dimensions |
160 × 100 × 25 mm |
| Mounting |
4 × M4 stand-offs, 30 mm spacing |
| Weight |
135 g |
| Compliance |
CE, RoHS, Otis QMS |
Order today—MOQ 1 pc, global courier 3-7 days.