Products › Relays, closures & data › REX
REX
Relay expander
An inexpensive relay multiplier. Six optocoupled inputs drive 24 contact closures, wired out on a 50-pin telco connector for standard punch blocks.
$295 list price
Questions before you buy? Call 352-335-6555. Need help with one you own? Open a ticket.
What connects to it
- 6InputsOptocoupled, active high or low
- 24Relay outputsFour SPST per input
- 50Pin connectorRJ-21 for telco punch blocks
- 6Output LEDsOne per output group
How it works
Each input drives its own group of four relays. Parallel the inputs when you need more closures at once.
- Logic or closuresSix inputs
REX
- Each input drives four relays
- Inputs can be paralleled
- Contact closures24 SPST
- Punch block50-pin RJ-21
REX
Relay expander
An inexpensive relay multiplier. Six optocoupled inputs drive 24 contact closures, wired out on a 50-pin telco connector for standard punch blocks.
Questions before you buy? Call 352-335-6555. Need help with one you own? Open a ticket.
What connects to it
How it works
Each input drives its own group of four relays. Parallel the inputs when you need more closures at once.
Inputs: Logic or closures (Six inputs). The REX: Each input drives four relays; Inputs can be paralleled. Outputs: Contact closures (24 SPST), Punch block (50-pin RJ-21).
Features
- Six optically isolated inputs, active high or active low
- Each input drives four SPST relays, for 24 outputs
- Relays can be driven directly by moving a jumper
- Inputs can be paralleled for more simultaneous outputs
- Rear-panel LED for each output group; front LEDs for power and activity
- 50-pin SCSI (RJ-21) output connector for prewired telco punch blocks
More about the REX
No more soldering dozens of small output connectors.
Manual and downloads
- REX manual (PDF)
- Data sheet (PDF)
Every manual and download is also on the Support page.
Options
| Part | What it is | List price |
|---|---|---|
| CW PB-66 | Telco cable and punch block for the REX and pREX. | $155 |
| RM-01 | Rack mount for one unit. Name the product when you order. | $49 |
Goes well with
- pREX: programmable relay expander, $399 list
- Transcon-16: bidirectional contact closure transporter, $385 list