Remote relay units
Secure Control for Standalone and OFFline Access Systems
XPR’s Relay Remote Units (RU1, RU2, RTT, DINRTT) are essential accessories for enhancing the security of XPR’s standalone and OFFline access control solutions. These remote relay modules allow door unlocking to be managed from a secure area, protecting critical components from tampering.
Designed to work with standalone readers (RFID, or keypad), they offer a reliable and secure solution for remote access activation.
Features Specifications Support Related products
XPR / Solutions / Accessories / Remote relay units / Remote relay units
Features
RTT – 1-Relay Remote and Request-to-Exit Button
RTT is a remote relay control unit that can work with offline proximity readers and standalone keypads.
If secure installation is needed, the biometric reader can be connected to a remote relay unit at a secured area, which also plays the role of an exit push button. It has one relay output and one exit button input.

DINRTT -Flush Mount 2-Relay Remote Unit and Request-to-Exit Button
DINRTT is the remote relay control unit for the offline proximity readers and the standalone keypads.
If secure installation is needed, reader can be connected to a remote relay unit at a secured area, which also plays the role of an exit push button. It has two relay outputs and two exit button inputs.

RU1 – Remote Relay Unit
The RU1 is a remote relay unit of 1 relay, with RS-485 output and 9-12 V DC.

RU2 – Two-Relay Remote Unit for Secure Installations
RU2 is a 2-relay remote control unit for Offline proximity readers and standalone keypads.
If secure installation is needed, the reader can be connected to a remote relay unit at a secured area.

Specifications
| Voltage: | 9-14 V DC |
|---|---|
| Operating humidity: | 0 to 95% (non-condensing) |
| RTT | DINRTT | RU1 | RU2 | |
|---|---|---|---|---|
| Mounting: | Surface | Flush | Surface | Surface |
| Housing: | Moulded aluminium/ABS | ABS (sold separately) | Electronics only | DIN rail enclosure |
| Colours: | Aluminium: silver ABS: black | Silver, charcoal, white | No | No |
| Resin potted electronic: | Yes | No | No | No |
| Touch plate: | Capacitive – Stainless steel | Capacitive – Stainless steel | No | No |
| Relay output: | 1 Relay (2 A/24 V AC/DC) | 2 Relay (2 A/24 V AC/DC) | 1 Relay (2 A/24 V AC/DC) | 2 Relay (3 A/230 V AC; 3 A/24 V AC/DC) |
| Relay time: | Pulse (1 to 60 s) or Toggle (ON/OFF) | Pulse (1 to 60 s) or Toggle (ON/OFF) | Pulse (1 to 60 s) or Toggle (ON/OFF) | Pulse (1 to 255 s) or Toggle (ON/OFF) |
| Visible signal: | Red LED: Stand by Green LED: relay operation | Red LED: Stand by Green LED: relay operation | No | No |
| Audible signal: | Programmable buzzer (ON/OFF) | Programmable buzzer (ON/OFF) | No | Buzzer (On/OFF) |
| Push Button Input: | 1 | 2 | 1 | 2 |
| Consumption: | 60 mA | Max. 100 mA | Max. 50 mA | Max. 80 mA |
| IP rating: | IP65 | IP40 | IP31 | IP31 |
| Dimensions (L x H x W): | Aluminium housing: 51 x 92 x 25 mm ABS housing: 51 x 92 x 27 mm | 80 x 80 x 9 mm | 25×25 mm | 32 x 86 mm (PCB) |
| Weight: | ~150 g | ~150 g | ~50 g | ~120 g |
| Operating temperature: | -20ºC to 50ºC | -20ºC to 50ºC | 0ºC to +40ºC | 0ºC to +40ºC |
| RTTS: | Relay Remote and Request-to-Exit Button – 1 relay – Metal – Silver – Surface |
|---|---|
| RTTBK: | Relay Remote and Request-to-Exit Button – 1 relay – ABS – Black – Surface |
| DINRTT-E: | Relay Remote and Request-to-Exit Button – 2 relays – Electronic only – Flush |
| RU1: | Relay Remote Unit – 1 relay – Electronic only |
| RU2: | Relay Remote Unit – 2 relays – DIN rail – Surface |
All product specifications are subject to change without notice.


