DIGITUS DS-55350 — 4K/60Hz HDMI with IR and RS-232 over fibre
4K/60HzIR + RS-232Up to 40 kmSFP slot
The DIGITUS HDMI Fiber IP Extender Set 4K/60Hz (part DS-55350) is a transmitter and receiver that carry HDMI video, audio, IR and RS-232 over fibre optic cable — up to 40 km on single-mode or 300 m on multimode — for digital signage, auditoriums, campuses and industrial sites where copper runs are too long or exposed to interference.
Each unit has an SFP slot for LC or SC modules. The signal is H.265-compressed over IP, so it can also run point-to-multipoint and cascade over 1G switches. IR pass-through lets you keep using the source remote at the display end, and the transmitter has an HDMI loop-out for a local screen.
Before you order: SFP modules are not included and the set will not work without them. Add two DIGITUS DN-81002 (LC single-mode) or DN-81000 (LC multimode), matched to your fibre.
What's in the Box
- Transmitter (TX) and receiver (RX)
- 2 × EU power supplies (5 V / 2 A, 1.2 m)
- 2 × IR cables (1.0 m)
- Wall-mount brackets and screws
- 2 × RS-232 terminal blocks
- 2 × earthing screws
- Manual
What It Means in Practice
- Send a media player or PC picture to a screen kilometres away on single-mode fibre, or across a building on multimode.
- Point the source remote at the receiver side; the IR signal returns to the source over the fibre.
- RS-232 carries display or projector control; 3.5 mm audio travels alongside the HDMI audio.
- Use the HDMI loop-out at the transmitter for a local preview monitor.
What Will Not Work
- No SFP modules in the box — order them separately.
- No keyboard/mouse (KVM) control — for that choose DS-55348.
- Compressed signal with 80–140 ms latency — not for gaming or latency-critical use.
- HDMI cables to source and display should be at most 5 m; indoor and dry use only.
Key Features
4K/60Hz over fibre
HDMI 2.0, 3840 × 2160 at 60 Hz, 18 Gbps, HDCP 2.2/1.4.
IR + RS-232
Control the source or display from the far end.
Long distances
Up to 40 km single-mode or 300 m multimode.
IP-based
Point-to-point, multipoint and cascading over 1G switches.
Technical Specifications
| Identification |
| Part Number |
DS-55350 |
| EAN / GTIN |
4016032501886 |
| Brand |
DIGITUS |
| Model |
HDMI Fiber IP Extender Set, 4K/60Hz |
| Video & audio |
| HDMI |
HDMI 2.0, 3840 × 2160 at 60 Hz, 18 Gbps |
| Compression |
H.265, latency 80–140 ms |
| HDCP |
2.2 / 1.4 |
| Audio |
3.5 mm audio in (TX), out (RX) |
| Ports |
| Transmitter |
HDMI in, HDMI loop-out, SFP, IR out, RS-232, 3.5 mm audio in, micro-USB (firmware), DC |
| Receiver |
HDMI out, SFP, IR in, RS-232, 3.5 mm audio out, micro-USB (firmware), DC |
| Transmission |
| Fibre |
Single-mode up to 40 km, multimode up to 300 m |
| SFP |
LC/SC modules, not included (DN-81002 SM, DN-81000 MM) |
| Topology |
Point-to-point, point-to-multipoint, cascade via 1G switches |
| Power & physical |
| Power |
DC 5 V / 2 A per unit, about 7.5 W each |
| Dimensions |
10.6 × 10.3 × 2.6 cm per unit |
| Weight |
TX 290 g, RX 286 g |
| Operating temperature |
-10 to 50 °C |
| Housing |
Black metal, wall-mountable |
| Protection |
Short circuit, overvoltage, ESD |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
Manufacturer does not publish a warranty term — claims handled through Singular |
Frequently Asked Questions
Which SFP modules do I need?
Two modules matching your fibre: DIGITUS DN-81002 for single-mode (LC) or DN-81000 for multimode (LC).
Can I control a PC at the far end?
No, there is no USB/KVM. Choose DS-55348 for keyboard and mouse.
Does it have a LAN port?
DIGITUS does not publish a separate Ethernet/LAN port; the fibre link itself is IP-based.
Singular Expert Insight · Buyer's Guide
DS-55350 is the fibre option for signage and AV where the screen is far away and you need the remote and RS-232 control to keep working. For multipoint layouts, 1G switches extend the fibre network — see our
switches.
✓ Buy it if you need 4K/60Hz HDMI with IR and RS-232 over fibre, from hundreds of metres to 40 km.
✕ Skip it if you need keyboard/mouse control or zero latency.
→ Also consider DS-55348 (with KVM) or DS-55522 HDBaseT over copper up to 150 m.
Planning a fibre run? Send us the distance and fibre type and we will confirm the SFP modules before you order.