Description
Otis elevator lop DAA23700A999 DAA23700B999 DBA26800G2 call box DAA23800A1 Brief Introduction
1. Full Supply Chain For Otis, Kone, Schindler, Mitsubishi, Thyssenkrupp Elevator Lift and Escalator All Brand Spare Parts
2. 100% Original New with a one-year free Guarantee.
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| Product Name: | Otis elevator lop call box |
| Model Number: | DAA23700A999 DAA23700B999 DBA26800G2 DAA23800A1 |
| Brand: | Otis elevator lop call box |
| Feature: | 100% Original New |
| Guarantee: | One-Year Free Guarantee |
| Delivery Time: | 3-5working days once get the payment |
Otis Elevator LOP DAA23700A999 – Keep Your Landing Signals Crystal-Clear
Supplied & Supported by Nanjing Zhuye Elevator Parts Co., Ltd.
Supplied & Supported by Nanjing Zhuye Elevator Parts Co., Ltd.
When passengers press the hall call button they expect an instant, bright response.
If the dot-matrix is dim, segments are missing, or the entire Landing Operation Panel stays dark, the first component to doubt is the LOP PCB.
The Otis DAA23700A999 board is the brains behind the buttons and LEDs on dozens of Otis models, from Gen2® to SkyWay®.
Nanjing Zhuye Elevator Parts keeps this exact OEM-grade card in stock, ready to ship worldwide within 72 hours.
Below we explain how the board works, how to install it without voiding warranty, and the replacement cycle that prevents expensive callbacks.
If the dot-matrix is dim, segments are missing, or the entire Landing Operation Panel stays dark, the first component to doubt is the LOP PCB.
The Otis DAA23700A999 board is the brains behind the buttons and LEDs on dozens of Otis models, from Gen2® to SkyWay®.
Nanjing Zhuye Elevator Parts keeps this exact OEM-grade card in stock, ready to ship worldwide within 72 hours.
Below we explain how the board works, how to install it without voiding warranty, and the replacement cycle that prevents expensive callbacks.
1. What DAA23700A999 Really Does
Mounted inside the hall face-plate, the board:
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Reads up/down push-buttons and optional key-switch inputs
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Drives high-brightness LEDs (24 V DC) for direction arrows
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Sends serial data to the dot-matrix floor display (common-anode, 5 V logic)
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Provides surge protection and ESD guard up to 4 kV
In short, it converts the controller’s CAN or UART string into something passengers can see and touch.
2. Compatibility Check—Will It Fit My Lift?
Fits:
Gen2® (CR, MR, NR), SkyWay®, 3200®, 4200® with software MPD3.7 or newer.
Does NOT fit:
Older MPD2.x systems using the larger DAA23300A* family—those need an adapter harness.
If unsure, email sales@nj-zy.com with a photo of your existing board; we reply within 12 hours.
Gen2® (CR, MR, NR), SkyWay®, 3200®, 4200® with software MPD3.7 or newer.
Does NOT fit:
Older MPD2.x systems using the larger DAA23300A* family—those need an adapter harness.
If unsure, email sales@nj-zy.com with a photo of your existing board; we reply within 12 hours.
3. Tools You Need Before You Go On-Site
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Otis service tool (SVT laptop or GECB hand-held)
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2.5 mm flat screwdriver for Euro-style terminals
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Anti-static wrist strap (30 % of premature failures are ESD)
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Torque screwdriver 0.5 N m for ribbon-cable clamp
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Multimeter with MIN/MAX capture
4. Step-by-Step Installation (Hot-Swap Not Allowed)
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Lock elevator on “INS” and tag out main disconnect.
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Remove face-plate screws; lower plate gently—LCD cable is only 150 mm long.
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Disconnect 24 V supply (orange pair), CAN (blue twisted pair), and 14-pin flat cable.
Take a photo first! -
Unscrew the two plastic stand-offs; lift old DAA23700A999 out.
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Inspect gasket for cracks; replace if necessary to maintain IP44.
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Drop in the new Nanjing Zhuye unit, aligning the keying slot.
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Re-connect cables in reverse order; torque clamp screws to 0.5 N m.
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Power up—green “STATUS” LED must blink 1 Hz.
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Use SVT to clear error log 0206 “LOP Comm Lost”.
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Perform five full-span runs in inspection, then release to normal mode.
Total downtime: < 15 minutes.
5. Programming Notes
Board ships with default address 00 (main landing).
If you replace a board on an upper floor, rotate DIP switch 1-4 to binary value of (floor-1).
No firmware flash needed—logic is stored on-board since revision C.
If you replace a board on an upper floor, rotate DIP switch 1-4 to binary value of (floor-1).
No firmware flash needed—logic is stored on-board since revision C.
6. Replacement Cycle & Preventive Maintenance
High-traffic metro or hospital (>1 500 calls/day): inspect quarterly, replace every 30 000 operating hours ≈ 3.5 years.
Office or hotel (500–1 000 calls/day): inspect every 6 months, replace every 5 years.
Residential (<300 calls/day): annual inspection, replace every 7 years.
Office or hotel (500–1 000 calls/day): inspect every 6 months, replace every 5 years.
Residential (<300 calls/day): annual inspection, replace every 7 years.
Replace earlier if:
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Arrow LEDs flicker at < 18 V supply
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Dot-matrix shows missing columns even after ribbon-cable re-seat
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CAN-bus error 0206 returns within 24 h
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Capacitor C7 bulges or brown burn mark around RS485 transceiver
7. Extending Board Life—Three Pro Tips from Nanjing Zhuye
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Seal the face-plate gasket properly; moisture is the #1 killer.
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Use a 24 V ± 2 % supply; over-voltage above 28 V shortens LED drivers.
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Once a year, apply contact cleaner to push-buttons—prevents conductive dust from migrating onto the PCB.
8. Why Buy DAA23700A999 from Nanjing Zhuye Elevator Parts?
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Genuine Otis spec, Rev. C or newer, RoHS-compliant, CE-marked
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Pre-trip test: every board is powered and CAN-tested before leaving our Nanjing warehouse
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ESD bag + bubble box + export carton, safe for air or sea freight
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Next-day DHL to USA/EU, 3-day UPS to Middle East, weekly LCL to Africa & South America
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12-month warranty, extendable to 24 months when purchased together with our button membrane kit
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24/7 English/Spanish/Arabic tech support via WhatsApp & WeChat
Conclusion
The Otis LOP DAA23700A999 is a small board that makes a big first impression.
Keep it bright, responsive, and error-free by following the simple replacement cycle above—and source it from Nanjing Zhuye Elevator Parts to cut lead time, cut cost, and cut passenger complaints.
Keep it bright, responsive, and error-free by following the simple replacement cycle above—and source it from Nanjing Zhuye Elevator Parts to cut lead time, cut cost, and cut passenger complaints.
