Vertiv ADB0039 RJ45 to RJ45 Sun/Cisco Cross Converter
Overview
The Vertiv ADB0039 is a passive serial adapter that cross-converts between Sun and Cisco RJ-45 console pinouts — the adapter you reach for when a Sun-pinned console cable won't talk to a Cisco-pinned port, or vice versa. If you've managed mixed-vendor console infrastructure, you know the problem: RJ-45 looks the same on both ends, but the pinout underneath is not. The ADB0039 solves that without a separate cable run or a DB9 adapter in the chain. It sits in the Vertiv serial adapter family alongside the ADB0036 (RJ-45 to DB9F) and ADB0037 (RJ-45 to DB9M), giving you a complete set of console conversion options from a single source.
Key Features
- RJ-45 Male to RJ-45 Female cross conversion: the male connector inserts into your existing console cable's female RJ-45 end; the female port accepts the device's RJ-45 console connector. No extra cable required — the adapter sits inline and handles the pinout translation passively.
- Sun/Cisco cross pinout: designed specifically for the two most common RJ-45 console pinout standards in enterprise and data center environments. If you're working with network infrastructure built from mixed Sun and Cisco gear, this adapter eliminates the need for two separate cable sets.
- Black housing: low-profile, unobtrusive form factor that won't create cable-management issues in dense patch panels or console server ports.
- Part of a complete Vertiv serial adapter line: pairs naturally with Vertiv's ADB0036 and ADB0037 when your console access environment also includes DB9 serial ports — common in legacy server and network device mixes.
Integration and Compatibility
The ADB0039 is intended for use with console servers and direct serial console connections where Sun-pinned and Cisco-pinned RJ-45 ports coexist. It functions passively — no drivers, no configuration. Compatibility is determined by your devices' actual RJ-45 console pinouts: verify whether your source and destination follow Sun or Cisco wiring conventions before deploying. For environments requiring DB9 conversion rather than RJ-45 cross-conversion, see the ADB0036 (DB9F) or ADB0037 (DB9M) in the Vertiv adapter line.
Frequently Asked Questions
Q: What is the difference between the ADB0039 and the ADB0036 or ADB0037?
A: The ADB0039 converts between Sun and Cisco RJ-45 console pinouts (RJ-45 to RJ-45). The ADB0036 converts RJ-45 to DB9 female, and the ADB0037 converts RJ-45 to DB9 male. Choose based on the connector type your target device requires.
Q: Does the ADB0039 require any drivers or software configuration?
A: No. It is a passive hardware adapter. Plug it inline between your console cable and device port — no drivers, firmware, or configuration needed.
Q: Which console pinout standards does the ADB0039 support?
A: It is designed for Sun and Cisco RJ-45 console pinout standards, which are the two most common conventions in enterprise network and server environments.
Q: What are the connector genders on the ADB0039?
A: The ADB0039 has a male RJ-45 connector on one end and a female RJ-45 connector on the other, allowing it to sit inline in an existing console cable run.
The ADB0039 is the kind of adapter that gets overlooked until the moment you actually need it. Its sole job is Sun-to-Cisco RJ-45 console pinout cross-conversion — male RJ-45 in, female RJ-45 out — and it does that passively with zero configuration overhead. In a mixed Sun/Cisco console environment, not having this adapter means either maintaining two separate cable sets or working around pinout conflicts manually. Neither is acceptable in a production data center.
Technical Highlights:
- Passive cross-conversion: no power, no drivers, no firmware. The ADB0039 is purely hardware — it translates pinouts inline and adds no failure points to your console access path.
- Male-to-female RJ-45 topology: the gendering is deliberate — male end connects to your existing female-terminated console cable, female end accepts the device's RJ-45 console port, keeping the adapter invisible in the cable run.
- Sun/Cisco pinout targeting: these are the two dominant RJ-45 console standards in enterprise infrastructure. The ADB0039 addresses the most common cross-vendor scenario without requiring a DB9 conversion step.
Deployment Considerations:
- Verify your source and destination devices' actual RJ-45 console pinouts before deploying — the adapter is specific to Sun and Cisco standards. If your gear uses a proprietary variant, this adapter may not resolve the mismatch.
- If your environment also includes DB9 serial ports, stock the ADB0036 (DB9F) and ADB0037 (DB9M) alongside the ADB0039 to cover the full range of Vertiv serial conversion scenarios without improvising in the field.
The ADB0039 belongs in every data center technician's console kit that touches mixed Sun and Cisco infrastructure — specifically where a single RJ-45 cable set needs to reach both vendor ecosystems without rewiring or adapter chains.
