| • Hardware | |
| Comm. Controller | 16C550C compatible |
| Bus | PCI Express x1 |
| Connector | DB44 female |
| • Serial Interface | |
| Number of Ports | 4 |
| Serial Standards | RS-422/485 |
| Max. No. of Boards per PC | 4 |
| • Serial Line Protection | |
| Surge Protection | 4 kV |
| Electrical Isolation | 2 kV |
| • Performance | |
| Baudrate | 50 bps to 921.6 kbps |
| • Serial Communication Parameters | |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Even, Odd, Space, Mark |
| Flow Control | RTS/CTS, XON/XOFF |
| • Serial Signals | |
| RS-422 | TxD+(B), TxD-(A), RxD+(B), RxD-(A), GND |
| RS-485-4w | TxD+(B), TxD-(A), RxD+(B), RxD-(A), GND |
| RS-485-2w | Data+(B), Data-(A), GND |
| • Physical Characteristics | |
| Dimensions | 67.21 x 103 mm (2.65 x 4.06 in) |
| • Driver Support | |
| Windows | Windows 2000/XP/2003/Vista/2008/7/8/8.1/10 (x86/x64), Windows 2008 R2/2012/2012 R2 (x64) |
| Linux | Linux 2.4.x, 2.6.x, 3.x |
| Unix-like Systems | QNX 6, SCO OpenServer, UnixWare 7, Solaris 10 (x86/x64) |
| Note: Please refer to Moxa’s website for the latest driver support information. | |
| • Environmental Limits | |
| Operating Temperature | 0 to 55°C (32 to 131°F) |
| Storage Temperature | -20 to 85°C (-4 to 185°F) |
| Ambient Relative Humidity | 5 to 95% (non-condensing) |
| • Standards and Certifications | |
| EMC | EN 55032/24 |
| EMI | CISPR 32, FCC Part 15B Class B |
| EMS | IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m IEC 61000-4-4 EFT: Power: 1 kV; Signal: 0.5 kV IEC 61000-4-5 Surge: Power: 2 kV; Signal: 4 kV IEC 61000-4-6 CS: 150 kHz to 80 MHz: 3 V/m; Signal: 3 V/m IEC 61000-4-8 |
| • MTBF (mean time between failures) | |
| Time | 433,077 hrs |
| Standard | Telcordia (Bellcore) TR/SR |
| • Power Requirements | |
| Input Current | 3,414 mA @ 3.3 VDC |
| • Warranty | |
| Warranty Period | 5 years |
| Details | See www.moxa.com/warranty |

Fieldbus Solutions, MOXA
CP-134EL-A-I
Features and Benefits
- PCI Express x1 compliant
- Serial communication speed up to 921.6 kbps
- 128-byte FIFO and on-chip S/W flow control
- Variety of connection cables and boxes available for RS- 232/422/485
- Drivers provided for the latest versions of Windows, Linux, and Unix
- Easy maintenance with on-board LED display and management software

