What it is for
Pair of boxes that carries video, USB, network and power over one cable, from the table to the display. Used in Briefing auditorium · Large meeting room · Medium meeting room and 6 more.
Installed by year
Ports
9 portsRJ4521 outUSB-A2USB-C1HDMI11 out3.5 mm1Terminal block1DC barrel11 in
Front
Rear
USBHDBaseTVideoOtherNetworkPower
Every port, in detail
| # | Port | Connector | Carries | Direction | Where |
|---|---|---|---|---|---|
| 1 | usb-c-1DisplayPort Alt Mode AV input; USB host connection to local/remote USB devices; LAN pass-through; charges the connected source up to 60W (PD 2.0 per manual text; product spec page separately states PD 3.0 compliant -.) only when the transmitter is powered via its adapter. | USB-C | video, USB, ethernet, power | Both ways | Front |
| 2 | hdbaset-1Connects to the HDBT IN connector on EXT3-POE-XR-R; carries extended HDMI, USB, Ethernet, RS-232 and IR; can receive PoE (PD) from the receiver. | RJ45 | video, USB, ethernet, rs232, ir, HDBaseT, PoE | Out | Rear |
| 3 | hdmi-out-1Local loop-through of the USB-C source's video signal to a local HDMI acceptor. | HDMI | video, audio | Out | Rear |
| 4 | usb-a-1For local USB peripherals (e.g. PTZ camera). USB signal and charging power are inactive on this port when no USB host PC is connected. Shares a 2A total USB device-charging current budget with usb-a-2. | USB-A | USB | Both ways | Rear |
| 5 | usb-a-2For local USB peripherals (e.g. camera, soundbar, microphone). Charging power on this port stays active even when the USB host PC is disconnected. Shares a 2A total USB device-charging current budget with usb-a-1. | USB-A | USB | Both ways | Rear |
| 6 | ir-1Bidirectional IR link extension. | 3.5 mm | ir | Both ways | Rear |
| 7 | rs232-13-pin (G, Rx, Tx) bidirectional RS-232 link extension. | Terminal block | rs232 | Both ways | Rear |
| 8 | lan-1Gigabit LAN connection for the USB-C source's Ethernet extension to the receiver. | RJ45 | ethernet | Both ways | Rear |
| 9 | power-inLocking 2-pin DC power connector (not a plain round barrel jack); +20V DC 6A, for powering the unit and USB-C charging. | DC barrel | power | In | Rear |
Spaces using it
77 spacesCHI 12.03 HeronCHI 12.04 CurlewCHI 12.05 GannetCHI 12.06 KestrelCHI 12.07 PeregrineCHI 12.08 Barn OwlCHI 13.01 OystercatcherCHI 13.02 LapwingCHI 13.03 KingfisherCHI 13.04 CormorantCPH 4.03 HeronCPH 4.04 CurlewCPH 4.05 GannetCPH 4.06 KestrelCPH 4.07 PeregrineCPH 4.08 Barn Owl+61 more
Space types that use it
86 units in 77 spaces at 10 officesBriefing auditoriumDual display, codec in the control roomLarge meeting roomLarge, single display, Large, dual display, Enhanced, single display, Enhanced, dual displayMedium meeting roomDual display, Single displaySmall meeting roomDual display, Single displayDemo zoneDual display, video barExecutive boardroomDual display, codecHuddle room, sofaRoom systemHybrid meeting roomStandardMakerspaceStandard
Notes
- Powered by its 20 V adapter, or by PoE sent from the EXT3-POE-XR-R over the HDBaseT cable (up to 19.7 W).
- Size and weight from the manual (190 x 27 x 113 mm, 0.56 kg); the product page says 116 mm deep and 0.6 kg.
- USB-C charging up to 60 W; the manual says Power Delivery 2.0, the product page PD 3.0.
- The manual came from a reseller-hosted copy; Kramer's download is behind a bot check.
What the manufacturer doesn't say
- No hardware revision is published, so the "Rev 0304" in the house kit list cannot be checked.
- USB-A charging is given only as 2 A shared between both ports.
Sources
- EXT3-C-XR-T 4K60 4:4:4 USB-C Transmitter - Kramer
Specifications - EXT3-C-XR-T / EXT3-POE-XR-R User Manual (Kramer P/N 2900-301567 Rev 2)
Port labels, faces and panel layout
Each model was read twice, independently, and the two readings reconciled against the manufacturer's text.