| • Hardware | |
| Comm. Controller | MU860 (16C550C compatible) |
| Bus | 32-bit Universal PCI |
| Connector | DB62 female |
| • Serial Interface | |
| Number of Ports | 8 |
| Serial Standards | CP-118U: RS-232/422/485 CP-138U: RS-422/485 |
| Max. No. of Boards per PC | 4 |
| • 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-232 | TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND |
| 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 | 82 x 135 mm (3.22 x 5.31 in) |
| • Driver Support | |
| Windows | Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008/7/8/8.1/10 (x86/x64), Windows 2008 R2/2012/2012 R2 (x64), DOS, Windows Embedded CE 5.0/6.0, Windows XP Embedded |
| Linux | Linux 2.4.x, 2.6.x, 3.x |
| Unix-like Systems | QNX 6, SCO OpenServer, UnixWare 7, Solaris 10, FreeBSD |
| Note: Please refer to Moxa’s website for the latest driver support information. | |
| • Environmental Limits | |
| Operating Temperature | Standard Models: 0 to 55°C (32 to 131°F) Wide Temp. Models: -40 to 85°C (-40 to 185°F) |
| Storage Temperature | -40 to 85°C (-40 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 |
| • MTBF (mean time between failures) | |
| Time | CP-118U: 1,073,385 hrs CP-138U: 1,147,210 hrs |
| Standard | Telcordia (Bellcore) SR-332 |
| • Power Requirements | |
| Input Current | CP-118U: 240 mA @ 5 VDC (RS-232); 300 mA @ 5 VDC (RS-422) CP-138U: 135 mA @ 5 VDC (RS-422) |
| • Warranty | |
| Warranty Period | 5 years |
| Details | See www.moxa.com/warranty |

MOXA, Multiport Serial Boards
CP-118U/CP-138U
Features and Benefits
- Over 700 kbps data throughput for top performance
- 921.6 kbps maximum baudrate for super fast data transmission
- 128-byte FIFO and on-chip H/W, S/W flow control
- Compatible with 3.3/5V PCI and PCI-X
- Drivers provided for a broad selection of operating systems, including the latest Windows and Linux
- Easy maintenance with on-board LED display, and management software
- 15 kV ESD protection on the board
- Wide temperature model available for -40 to 85°C environments

