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---
title: Ziza OP151S
has_children: false
layout: default
parent: Ziza
---
# Hardware Specifications
| | |
| ---------------- | ---------------------------------------------------------- |
| Vendor/Brand | Ziza |
| Model | OP151S |
| ODM Manufacter | T&W |
| ODM Product Code | TW2362H-CDEL |
| Chipset | Lantiq PEB98035 |
| CPU | MIPS 34Kc interAptiv |
| CPU Clock | 400MHz |
| Flash | 8 MB (GigaDevice GD25Q64CW16) |
| RAM | 64 MB (Nanya NT5TU32M16FG-AC1) |
| System | eCoS |
| HSGMII | Yes |
| Optics | SC/APC |
| IP address | 10.10.1.1 |
| Web Gui | ✅ username `admin` or `guest`, password `1234` or `guest` |
| SSH | ✅ username `admin`, password `admin` |
| Telnet | |
| Serial | ✅ |
| Serial baud | 115200 |
| Serial encoding | 8-N-1 |
| Form Factor | miniONT SFP |
{% include image.html file="op151s.png" alt="Ziza OP151S" caption="Ziza OP151S" %}
{% include image.html file="tw236h-cdel-th.jpg" alt="PMG3000-D20B Teardown" caption="PMG3000-D20B Teardown" %}
{% include image.html file="tw236h-cdel-th-back.jpg" alt="PMG3000-D20B Teardown" caption="PMG3000-D20B Teardown" %}
## Serial
The stick has a TTL 3.3v UART console (configured as 115200 8-N-1) that can be accessed from the top surface. It's near the SFP header. TX, RX and ground pads need to be connected to a USB2TTL adapter supporting a logic level of 3.3V.
{% include image.html file="tw236h-cdel-serial.jpg" alt="PMG3000-D20B Serial Pinout" caption="PMG3000-D20B Serial Pinout" %}
{% include alert.html content="Some USB TTL adapters label TX and RX pins the other way around: try to swap them if the connection doesn't work." alert="Note" icon="svg-warning" color="yellow" %}
## Firmware is interchangeable with:
- [Halny HL-GSFP](/ont-halny-hl-gsfp)
- [D-LINK DPN-100-Rev-A2](/ont-d-link-dpn-100-rev-a2)
- [Ziza OP151s](/ont-ziza-op151s)
- [T&W TW2362H-CDEL](/ont-t-w-tw2362h-cdel)
# Miscellaneous Links
- [Tech Info Depot Wiki](http://en.techinfodepot.shoutwiki.com/wiki/ZISA_OP151S)
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