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ESP-4 MI Serial Hub
 Connect and manage serial devices over IP. ESP multi-interface serial hubs allow serial devices to become IP-enabled using RS-232, RS-422 and RS-485 protocols for industrial/manufacturing environments and commercial applications. It's the ideal solution for reliable and cost-effective serial connectivity at the point of need.
The 4-port ESP-4 MI multi-interface serial hub provides serial over IP access, allowing devices to be placed at the point of need. Windows, Linux, and UNIX applications are able to access network-attached peripherals as if they were directly connected. Installation is quick and simple with structured cabling benefits. Serial COM ports for new devices can be connected in minutes "on the fly" and do not require opening your server or interrupting operations. Simply attach the ESP serial hub to twisted-pair Ethernet and load the device driver on the server.
In addition to COM port redirection, ESP serial hubs offer RAW TCP, serial tunneling, modem emulation and Telnet modes of operation. When configured to work in tandem, two ESP serial hubs act as a virtual serial cable across IP networks. The onboard Telnet server enables Telnet clients to access console ports of serially-managed devices.
Browser-Based Management
An internal web server offers a secure means to configure and manage ESP serial hubs as well as ESP-View, a built-in Java-based tool for remote diagnostics of cabling and device malfunctions.
ESP-4 MI Quick Facts
- 4-port, DB-9 Male connectors with RS-232, RS-422, and RS-485 support
- Includes ESP-View, a powerful tool for remote diagnostics of cabling and device malfunctions
- Port management software, EquiView Plus for Windows and ESPDIAG for UNIX and Linux is included to help you manage serial device ports
- Structured cabling eliminates complicated wiring for quicker and simpler installations
- Supports major operating systems
Features and Benefits
- Selectable serial signaling - RS-232, RS-422, RS-485 interfaces
- Unattended install - Quick and consistent installations without onsite technical staff
- High availability - Multi-host attachment allows for hot-backup solutions
- Selectable Connections Methods - Telnet Server, COM Redirection, RAW TCP Client/Server, Serial Tunneling
- Browser-based management - An internal web server offers a secure means to configure and manage ESP serial hubs - configuration, port status, loopback testing, data scope
- Modem/control signals - CTS, RTS, DSR, DCD, DTR
- One click 'replace' option - Add a new unit without configuration
- Structured cabling - Cable clutter is eliminated and reduces installation cost
- On-the-fly connectivity - Connect additional serial ports and new devices in minutes on the fly - no need to open your server or interrupt operations
- ESP-View - Remotely diagnose cable and device anomalies with ESP-View, a built-in Java-based diagnostic utility, using loopback, data scope, breakout box, and monitoring capabilities
- EquiView Plus and ESPDIAG - ESP serial hubs include management applications including EquiView Plus for Windows and ESPDIAG for UNIX and Linux
Specifications
| Mechanical |
| Height |
1.50 in. |
| Width |
5.50 in. |
| Depth |
6.75 in. |
| Weight |
3.0 lbs. |
| Connectors |
(4) DB-9 Male DTE ports |
| Speed |
230 Kbps |
| Modem Control |
RTS, CTS, DSR, DTR, DCD |
| Surge Suppression |
On every pin of every port |
| Environmental |
| Operating Temp |
0 to 40 degrees C |
| Humidity |
10% to 90% (non-condensing) |
| Power |
| Operating Voltage |
5VDC (1A) |
| Standards |
| Approved Agency |
UL 60950-1, CSA C22.2 No. 60950-1 (cUL listed), FCC Part 15 Class A, CE |
| Support |
| Operating System |
Windows NT/2000/2003/XP, Citrix, Linux, AIX, UNIX, SCO, Solaris
IBM Server Proven |
Diagrams
Connect a wide range of industrial and commercial serial devices to the ESP-4 MI. Its unique 'single port' option allows the appliance to appear as a single port device in large network management topologies.
Photos
Ordering
| Description |
Part Number |
| ESP-4 MI, 4-port Ethernet serial hub, RS-232, RS-422, RS-485 (110V/220V) |
990476 |
| Rack Mount Shelf |
790200 |
| Wiring Starter Kit |
Part Number |
| Includes: (1) RJ-45 to DB-25 Male adapter DTE, (1) RJ-45 to DB-25 Female adapter DTE, (1) RJ-45 to DB-25 Male adapter DCE, (1) RJ-45 to DB-25 Female adapter DCE, (1) RJ-45 to DB-9 Male adapter, (1) RJ-45 to DB-9 Female adapter, (1) RJ-45 to RJ45 Cisco Male adapter and (1) 10-foot and 8-wire reversing modular cable |
750122 |
| RJ-45 Modular Adapters (8-wire) |
Part Number |
| RJ-45 to DB-9 Male adapter, DTE |
210094 |
| RJ-45 to DB-9 Female adapter, DCE |
210095 |
| RJ-45 to DB-25 Male adapter, DTE |
210090 |
| RJ-45 to DB-25 Male adapter, DCE |
210092 |
| RJ-45 to DB-25 Female adapter, DTE |
210091 |
| RJ-45 to DB-25 Female adapter, DCE |
210093 |
| RJ-45 to RJ-45 Male adapter for Cisco and Sun Netra console port |
210105 |
| RJ-45 Serial Reversing Cables (8-wire) |
Part Number |
| 10-foot, reversing cable |
690226 |
| 25-foot, reversing cable |
690227 |
| 75-foot, reversing cable |
690228 |
| CAT 5 Serial Adapter Kit |
Part Number |
| Includes: (1) CAT 5 RJ-45 to DB-25 Male adapter DTE, (1) CAT 5 RJ-45 to DB-25 Female adapter DTE, (1) CAT 5 RJ-45 to DB-25 Male adapter DCE, (1) CAT 5 RJ-45 to DB-25 Female adapter DCE, (1) CAT 5 RJ-45 to DB-9 Male adapter DTE, (1) CAT 5 RJ-45 to DB-9 Female adapter DCE, and (1) CAT 5 RJ-45 to RJ-45 Cisco Male adapter |
750238 |
| CAT 5 RJ-45 Modular Adapters (8-wire) |
Part Number |
| CAT 5, RJ-45 to DB-9 Male adapter, DTE |
210122 |
| CAT 5, RJ-45 to DB-9 Female adapter, DCE |
210120 |
| CAT 5, RJ-45 to DB-25 Male adapter, DTE |
210124 |
| CAT 5, RJ-45 to DB-25 Male adapter, DCE |
210123 |
| CAT 5, RJ-45 to DB-25 Female adapter, DTE |
210125 |
| CAT 5, RJ-45 to DB-25 Female adapter, DCE |
210121 |
| CAT 5, RJ-45 to R-J45 Male adapter for Cisco and Sun Netra console port |
210127 |
| Note: For cable lengths greater than 100 feet, use serial reversing cables and adapters rather than CAT 5 cables and adapters. |
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