Rj11 straight- through cable (rs- 232), Rj11 loopback plugs – Comtrol RocketPort Universal PCI User Manual
Page 20

20 - Connecting Serial Devices
RocketPort Universal PCI User Guide: 2000284 Rev. G
Connecting Serial Devices
RJ11 Straight-
Through Cable (RS-
232)
Use straight-through cables to connect modems and other DTE devices. For
example, you can connect one end of a straight-through cable to COM2 on one
computer and the other end of the straight-through cable to a modem.
RJ11 Loopback
Plugs
A loopback plug is an RJ11 serial port plug with pins wired together. You can use
it with application software (for example, Test Terminal) to test serial ports.
To build an RJ11 loopback plug, wire these pins together:
•
Pins 3 to 4
•
Pins 1 to 5 to 6
DTR
1
DCD
RxD
TxD
DTR
GND
Signal
DCD
RxD
TxD
GND
Signal
RJ11
5
4
3
2
Pins
DB25
8
3
2
20
7
Pins
RocketPort
DCE Serial Device
DB9
1
2
3
4
5
Pins
CTS
CTS
6
5
8
See also other documents in the category Comtrol Accessories communication:
- FreeWire (54 pages)
- DeviceMaster LT (136 pages)
- PortVision DX (155 pages)
- eCos (814 pages)
- PRO DeviceMaster (178 pages)
- PRO DeviceMaster Rackmount Shelf Kit (3 pages)
- UP DeviceMaster User Guide (166 pages)
- UP DeviceMaster Quick Start (36 pages)
- UP DeviceMaster Installation (86 pages)
- Modbus TCP Quick Start (78 pages)
- Modbus TCP User Guide (112 pages)
- PROFINET IO (18 pages)
- UP DeviceMaster Filtering and Data Extraction (26 pages)
- 500 DeviceMaster (72 pages)
- SICK LMS (12 pages)
- IOLM 4-EIP (62 pages)
- IO-Link Master EIP-4 (114 pages)
- IOLM Modbus TCP (28 pages)
- ES7110 (14 pages)
- ES7506 (158 pages)
- ES7510 (202 pages)
- ES7510-XT (215 pages)
- ES7528 (224 pages)
- ES8105 (6 pages)
- ES8508 Series Quick Start (8 pages)
- ES8508 Series User Guide (212 pages)
- RocketLinx VLAN Web (5 pages)
- ES8509-XT (210 pages)
- ES8510 (204 pages)
- ES8510-XTE (206 pages)
- ES9528 User Guide (212 pages)
- ES9528 Quick Start (8 pages)
- MC5001 (8 pages)
- MC7001 (6 pages)
- RocketPort EXPRESS (36 pages)
- RocketPort EXPRESS SMPTE (28 pages)
- RocketPort INFINITY (32 pages)
- Cable (38 pages)
- RocketPort Plus 422 Universal PCI (26 pages)
- RocketPort Plus Universal PCI (30 pages)
- VS3000U (44 pages)
- VS2000 V.34 (4 pages)
- VS1000 Configuration Guide (38 pages)
- VS1000 Installation Reference Card (13 pages)