Embedded computers and backplanes
VPX and RT2 serve rugged embedded computing for rail and industry; SYSOLC/SYTOLC stacks processor and I/O boards.
Connectors for Rugged Computing and Communication
Rugged embedded computers and communication equipment move multi-gigabit data, RF and optical signals in enclosures that must pass EMC tests.
VPX connectors combine 6.25 Gbps differential, RF to 40 GHz and MT fiber modules; 38999-type fiber-optic hybrids and EMI filter connectors handle the enclosure wall; HJ30J and J7245 serve dense board-level links.
At a glance
- 6.25 Gbps
VPX differential modules at 100 Ω; RT2 is 10 Gbps capable
- 40 GHz
VPX VITA 67 RF modules, 50 Ω
- 55 dB
J599 Series III π filter, 100 nF, at 100 MHz
- 0.635 mm
J7245 Nano-D pitch, 9 to 69 contacts
Where they are used
Enclosure walls and communication
38999-type filter connectors stop EMI/RFI at the enclosure wall, fiber-optic hybrids carry optical and electrical circuits together, and J599A8 serves industrial networks and rail communication.
Dense boards and data acquisition
HJ30J carries compact differential links, J7245 dense board-to-cable links, and J29 rugged computers and control units.
What the connectors must handle
Backplane signals
VPX differential modules run 6.25 Gbps at 100 Ω; RT2 runs 6.25 Gbps, is 10 Gbps capable and holds 100 ± 15 Ω.
RF and fiber modules
VITA 67 RF modules cover DC to 18 or 40 GHz at 50 Ω; VITA 66 fiber modules use MT ferrules with ≤ 1.5 dB insertion loss.
Filtering at the enclosure
J599 Series III filter connectors offer C or π circuits from 75 pF to 100 nF, with up to 55 dB at 100 MHz.
Optical and electrical in one shell
The 38999-type fiber-optic hybrid mixes fiber with 50 Ω coax to 18 GHz and 1.65 Gbps differential contacts, at ≤ 0.6 dB optical loss for up to 4 fibers.
Density
HJ30J uses a 1.27 mm pitch and J7245 Nano-D 0.635 mm; SYSOLC/SYTOLC fits 20 to 200 contacts at 6.35, 8, 10 or 12 mm board spacing.
Fiber channel count
J599A8 carries 2 to 32 fibers with ARINC 801 removable termini, at ≤ 0.6 dB multimode and ≤ 0.8 dB single-mode.
Compare the series
Backplane and board links
Swipe left or right to see all columns.
| Series | Data rate | Impedance or pitch | Current or power | Temperature | Datasheet |
|---|---|---|---|---|---|
| VPX | 6.25 Gbps differential | 100 Ω | 8 A per circuit, 48 V | −55 to +125 °C (−55 to +80 °C with fiber) | PDF, 213 KB |
| RT2 | 6.25 Gbps (10 Gbps capable) | 100 ± 15 Ω | 2.5 A power / 1 A signal | −55 to +125 °C | PDF, 180 KB |
| SYSOLC / SYTOLC | Up to 10 Gbps | 1.27 mm (0.635 mm pads) | 2.5 A | −55 to +125 °C | PDF, 211 KB |
| HJ30J | 1.65 Gbps (cable) / 3.125 Gbps (PCB to PCB) | 1.27 mm | 3 A | −55 to +125 °C | PDF, 193 KB |
Fiber and enclosure-wall interfaces
Swipe left or right to see all columns.
| Series | Contact function | Loss or attenuation | Configuration | Temperature | Datasheet |
|---|---|---|---|---|---|
| J599 III fiber-optic | Fiber, power, coax, twinax and differential | ≤ 0.6 to ≤ 1 dB, by layout | 50 Ω, 0–18 GHz | −55 to +125 °C | PDF, 224 KB |
| J599 III filter | C or π | Up to 55 dB at 100 MHz | 75 pF to 100 nF | −55 to +125 °C | PDF, 247 KB |
| J599A8 | 2 to 32 fibers | ≤ 0.6 dB multimode / ≤ 0.8 dB single-mode | 9/125, 50/125, 62.5/125, OM3 | −55 to +125 °C | PDF, 233 KB |
How to choose
Allocate the modules
Give the 3U or 6U format and the module at each position: differential, single-ended, power, RF or optical.
Specify each signal path
Give data rate, impedance, RF frequency and fiber type, and whether the link runs over cable or PCB.
Select the filter
Choose C or π circuits and a capacitance that puts the cut-off above your signal band.
Check spacing and environment
Give board spacing, cable exit, temperature range, vibration and shock.
Send the layout
Send the module allocation, pin-out, fiber type and mounting drawing, and we will review your project.
Recommended series
VPX Rugged Hybrid Backplane Connectors (VITA 46 / 66 / 67)
6.25 Gbps · RF to 40 GHz · MT fiber · 3U and 6U
RT2 High-Speed Backplane Connectors for VPX (VITA 46)
VITA 46 · 6.25 Gbps (to 10 Gbps) · press-fit
38999 Series III-Type Fiber-Optic and Hybrid Connectors
Fiber + power + coax + data in one 38999 shell · ≤ 0.6 dB
38999 Series III-Type EMI Filter Connectors, Marine Grade
C or π filter per contact · up to 55 dB · marine grade
HJ30J High-Speed Micro-D Connectors
100 Ω differential pairs · up to 3.125 Gbps board-to-board
J7245 Nano-D Connectors, 0.635 mm Pitch
0.635 mm pitch · 9 to 69 contacts · metal shell
SYSOLC / SYTOLC High-Density Mezzanine Connectors, 1.27 mm
4-row SMT · 1.27 mm pitch · 20–200 contacts · to 10 Gbps
J599A8 38999 Series III-Type Multi-Fiber Optical Connectors
2 to 32 fibers · ≤ 0.6 dB multimode · ≤ 0.8 dB single-mode
All series can be customized — contact counts, cable lengths, materials and finishes.
Related guides
VPX Connectors: VITA 46, VITA 66 and VITA 67 Explained
An overview of VPX backplane connectors: VITA 46 differential modules, VITA 67 RF and VITA 66 fiber modules, 3U and 6U layouts, and how to specify them.
EMI Filter Connectors: C vs π Filters and Choosing Capacitance
How EMI filter connectors work, C vs π filters, how to pick capacitance from cut-off frequency, and precautions for DC filter connectors.
Micro-D vs Nano-D Connectors: How to Choose
Micro-D (1.27 mm pitch) vs Nano-D (0.635 mm pitch) connectors: differences in current, contact count, mating cycles and variants, and how to choose.
38999 Insert Arrangements and Service Ratings Explained
How 38999 insert arrangements are numbered, what contact sizes they use, and how service ratings M, N, I and II set the withstanding voltage.
FAQ
What do VITA 46, VITA 66 and VITA 67 cover?
VITA 46 covers the base VPX board format and differential backplane interface; VITA 66 covers optical modules and VITA 67 RF modules. Our VPX modules carry differential, single-ended, power, RF and optical signals for 3U and 6U boards.
What data rates do the backplane connectors support?
VPX and RT2 run 6.25 Gbps differential, and RT2 is 10 Gbps capable at 100 ± 15 Ω. SYSOLC/SYTOLC board-to-board connectors run up to 10 Gbps.
How much attenuation do the filter connectors give?
Up to 55 dB at 100 MHz with the π 100 nF array. C and π circuits range from 75 pF to 100 nF; choose the value for your signal frequency.
What optical loss does the 38999-type fiber-optic hybrid have?
≤ 0.6 dB with up to 4 fibers, ≤ 0.75 dB with more than 4, and ≤ 1 dB in hybrid layouts.
What temperature range does VPX cover?
−55 to +125 °C, and −55 to +80 °C with fiber modules.
From sample to production
Send your requirements
Part number, drawing, pin-out or a short description of your application.
Configuration and quote
Our engineers match the configuration and reply with a drawing and quotation.
Samples
Samples are built to order. The minimum order quantity is 10 pieces, and samples and production orders each take 4–8 weeks. Third-party testing to your specification is available on request.
Your approval
You test the samples in your own equipment and approve them.
Series production
Production follows the approved sample configuration, with machining, molding, plating and assembly in our own Shenyang factory.
Need a quote or a drawing?
Send your part number, pin-out or drawing. Every inquiry is acknowledged by email within 1 business day, and an engineer follows up with a matched configuration, drawing or quotation.