DB9F to Terminal Block Adapter (TNS)
- Passive design, requires edge connectivity device with software-selectable RS 485/422 communication
- Standard DB9 female black connector with nickel plated shell
- Secure locking screw design, DB9F to screw terminals For RS422 and RS485 interfaces
- Compatible with Moxa Uport, Mgate and Nport product series
- Ready stock with no minimum order quantity
- RoHS and Reach Compliant
Interface your 2-wire RS-485 or 4-wire RS-485 serial modes to a standard DB9 COM port with TNS mini DB9-to-TB-b. This passive adapter is designed for edge connectivity device with software-selectable RS-232/485/422 communication. TNS adapter is compatible with serial connectivity devices across brands. Pin assignment details are also printed on the product label.
Pin Assignment (Generic)
| Serial COM (DB9F) | 1 | 2 | 3 | 4 | 5 |
| Terminal Block | 2 | 1 | 3 | 4 | 5 |
Pin Assignment (Moxa Compatible)
| Terminal Block | 1 | 2 | 3 | 4 | 5 |
| Pin Assignment | T+ | T- | R+(D+) | R-(D-) | GND |
[Purchase] Is there a minimum order?
[Purchase] Is there a minimum order?
No minimum order is required unless specified.
[Purchase] What payment methods do you accept? Is it safe to make payments on your website?
[Purchase] What payment methods do you accept? Is it safe to make payments on your website?
We accept credit cards, paynow and bank transfer. All online transactions are secured using trusted payment gateways. We do not store credit card information.
[Purchase] Can I cancel or get a refund for my order?
[Purchase] Can I cancel or get a refund for my order?
Orders are non-cancellable once confirmed. Please contact TNS for assistance.
[Delivery] Do you provide free delivery?
[Delivery] Do you provide free delivery?
Yes, we offer free delivery within Singapore mainland for orders over S$80 (excludes Jurong Island, shipyards, and restricted zones).
[Delivery] How long does delivery take?
[Delivery] How long does delivery take?
Standard local delivery is within 2–4 working days. For time-sensitive orders, contact us before placing an order.
[Delivery] Do you offer self-collection for urgent orders?
[Delivery] Do you offer self-collection for urgent orders?
Yes. Please contact us before placing your order to arrange collection.
[Delivery] Do you ship internationally?
[Delivery] Do you ship internationally?
Yes, we ship worldwide except sanctioned countries. If you encounter any issues during checkout or your country is not listed, please contact us for assistance.
[Support] Is warranty registration required?
[Support] Is warranty registration required?
No registration is required. Your warranty is auto-activated upon purchase.
[Support] Can I speak to someone for product recommendations?
[Support] Can I speak to someone for product recommendations?
Yes. Contact us for pre-sales advice
[Support] How can I get technical help with Moxa or Axiomtek products?
[Support] How can I get technical help with Moxa or Axiomtek products?
You can reach our support team during office hours or email us.
This product is export-ready and classified under an international HS Code for smooth customs clearance. TNS ships worldwide via DHL Express, providing fast and reliable international delivery.
For customers in Singapore, we offer free local shipping on orders above SGD $80 — no extra handling fees.
Below are key shipping and compliance details to support both local and international logistics planning.
