Crestron shop

Crestron CEN-IO-COM-102 Wired Ethernet Module with 2 RS-232 COM Ports

Crestron part number CEN-IO-COM-102

The Crestron CEN-IO-COM-102 is a compact wired Ethernet I/O module that adds two bidirectional RS-232 COM ports to a Crestron control system. It is powered over the network by PoE and uses the small, stackable IFE micro enclosure, so it fits almost anywhere.

Price on request

The price isn't hidden. Crestron asks its dealers to share it with you directly rather than publish it online, so tap Request a quote and we'll send it straight to you.

Prefer to talk? Dublin 01 906 9326 Cork 021 202 8107 WhatsApp us

Installation and programming

Need it installed? Our Crestron certified engineers install, set up and programme everything we supply. A 4 hour visit is €440 and a full day €880, plus VAT.

Book an installation
Crestron CEN-IO-COM-102 Wired Ethernet Module with 2 COM Ports

About the Crestron CEN-IO-COM-102

Each COM port is a 5-pin 3.5 mm detachable terminal block supporting 2-way RS-232 control and monitoring at up to 115.2k baud, with hardware and software handshaking. The module talks to the control system over the local network, so connected equipment can be controlled and monitored remotely from a computer or tablet. Setup is done with Crestron Toolbox software or a web browser.

Power arrives over the LAN cable, as an IEEE 802.3at Type 1 (802.3af compatible) Class 0 PoE powered device drawing 1.9 W, so no local power supply is needed. A PWE-4803RU PoE injector fitted in line with the LAN cable or a Crestron PoE switch such as the CEN-SW-POE-5 or CEN-SWPOE-16 can supply it. The 100 Mbps Ethernet port supports TLS 1.2, SSL and local authentication.

The IFE micro enclosure is black and blue plastic and measures 34 mm high, 128 mm wide and 73 mm deep (45, 136 and 85 mm with the bracket). It can stand freely, stack with other IFE devices, or mount on a surface or 35 mm DIN rail using the included bracket, where it takes 8 DIN module spaces (144 mm). Rack and pole mounting options are also available. For a wireless version, see the CEN-IO-COM-202.

Key features

  • Two bidirectional RS-232 COM ports, up to 115.2k baud
  • Hardware and software handshaking
  • Wired Ethernet, powered by PoE (1.9 W)
  • Remote control and monitoring of connected equipment over the network
  • Setup through Crestron Toolbox or a web browser
  • TLS 1.2, SSL and local authentication security
  • Compact, stackable IFE micro enclosure
  • Surface or DIN rail mounting with the included bracket

CEN-IO-COM-102 specifications

COM ports2 x RS-232, bidirectional, up to 115.2k baud, hardware and software handshaking; 5-pin 3.5 mm detachable terminal blocks
Network100 Mbps Ethernet (RJ-45), DHCP, SSL, TLS
PowerPoE, IEEE 802.3at Type 1 (802.3af compatible) Class 0 powered device
Power consumption1.9 W
SetupCrestron Toolbox software or web browser
EnclosureIFE micro form factor, black and blue plastic
MountingFreestanding, stackable, surface or 35 mm DIN rail (EN 60715); 8 DIN module spaces (144 mm)
Dimensions34 x 128 x 73 mm (H x W x D); 45 x 136 x 85 mm with bracket
Weight180 g (6.4 oz)
Operating environment5 to 40 °C (41 to 104 °F); 10% to 90% RH non-condensing; 7 BTU/hr

Part numbers on this page

Part numberVersionPriceAdd
CEN-IO-COM-102 Standard On request

Where the CEN-IO-COM-102 is used

  • Adding RS-232 device control where the processor has no spare COM ports
  • Controlling serial equipment located away from the main processor
  • Tight spaces that suit a small PoE powered module
  • Commercial and residential control systems

Works with the CEN-IO-COM-102

Crestron installed by 1Install

We supply, install and programme Crestron in homes and businesses across Ireland. These photos are from our own installations. See more in our projects, or budget a whole system with our Quote Builders for homes and meeting rooms.

Crestron controlled shelf lighting in a Dublin retail boutique
Crestron controlled shelf lighting in a Dublin retail boutique
Neatly dressed structured cabling for a Cork office
Neatly dressed structured cabling for a Cork office
Country house at dusk with Crestron lighting in Waterfall, Cork
Country house at dusk with Crestron lighting in Waterfall, Cork

Questions about the Crestron CEN-IO-COM-102

What does the Crestron CEN-IO-COM-102 do?

It adds two bidirectional RS-232 COM ports to a Crestron control system over wired Ethernet. Equipment connected to those ports can be controlled and monitored at up to 115.2k baud, with hardware and software handshaking, and the module is powered by PoE through its LAN connection.

How is the CEN-IO-COM-102 powered?

It is a PoE powered device (IEEE 802.3at Type 1, 802.3af compatible, Class 0) and uses 1.9 W, so it needs no local power supply. Power can come from a Crestron PoE switch such as the CEN-SW-POE-5 or CEN-SWPOE-16, or from a PWE-4803RU PoE injector in line with the LAN cable.

What is the difference between the CEN-IO-COM-102 and CEN-IO-COM-202?

Both provide two RS-232 COM ports in the same IFE micro enclosure. The CEN-IO-COM-102 connects by wired Ethernet and is powered by PoE. The CEN-IO-COM-202 connects over Wi-Fi to a wireless access point and runs from an included 5 VDC power pack.

How is the module mounted?

The IFE micro enclosure can stand freely, stack with other CEN-IO and IFE compliant devices, or fix to a flat surface or 35 mm DIN rail using the included bracket. On a DIN rail it occupies 8 module spaces (144 mm). Rack mount and pole mount options are also available.

What security does the CEN-IO-COM-102 support?

It supports TLS 1.2, SSL and local authentication, which help protect against service interruptions and malicious intrusions. Configuration is through Crestron Toolbox software or a web browser, and the unit has a recessed SETUP button with a red LED.

How much is the Crestron CEN-IO-COM-102?

Crestron asks its dealers to give the price of the CEN-IO-COM-102 directly rather than publish it online. Add it to your quote list and we will send you a written quote, with delivery, and installation and programming if you need them.

Can 1Install supply, install and programme the CEN-IO-COM-102?

Yes. 1Install is an authorised Crestron Elite Partner with offices in Skerries, Co. Dublin and Cork. We can supply the CEN-IO-COM-102 on its own, or install, set up and programme it as part of your system. Installation visits are €440 for 4 hours or €880 for a full day, plus VAT and travel.

Does the CEN-IO-COM-102 come with a warranty?

Yes. Everything we supply is new, genuine Crestron with Crestron's standard warranty. If the CEN-IO-COM-102 develops a fault, contact us and we will handle the claim with Crestron. If we installed it, our workmanship is guaranteed for the lifetime of the system.

Is the CEN-IO-COM-102 in stock?

We order Crestron for each quote, so availability depends on Crestron's stock at the time. We check it before we quote and put the expected delivery date on your quote, so you know where you stand before you pay.

Can I buy the CEN-IO-COM-102 without installation?

Yes. We supply Crestron to end users, with or without installation. Like most Crestron devices of this type, it needs setting up or programming before it works in a system, and we can quote for that too.

More from Control processors and interfaces

Browse all of Control processors and interfaces

Start a conversation

Let's plan your space together.

Tell us a little about your project and a member of the team will be in touch.

Contact us for a meetup to discuss your needs

WhatsApp us