How To Install a WPAN Gateway
The three form factors of the WPAN Gateway offer a variety of mounting options. The Standard Gateway typically mounts directly to the DB-9 port of the DCE device or modem. The Windshield Gateway is supplied with a piece of double sided adhesive tape so it can be mounted to a vehicle windshield for improved RF (Radio Frequency) line of sight performance. The Rooftop Gateway is a sealed unit and can be mounted externally to a vehicle or building to provide an un-obstructed view of the surroundings. The Rooftop Gateway can be affixed with adhesive tape, screws or mirror mount bracket. An optional sealing skirt is also available for roof mount applications.
A WPAN Gateway can be connected to the DCE device serial port via a DB-9 interface. The WPAN Gateway provides a “gateway” for communication between the various Cypress WPAN products and other serial (DCE) data communication equipment such as wireless data modems. A WPAN Gateway is defined as data terminal equipment (DTE) that connects to other data communications equipment (DCE) devices via a 9 pin DB-9 connector. If the WPAN Gateway is connected to a PC, a null-modem cable is required to facilitate communications. The WPAN Gateway sends/receives text based (NMEA style) messages based on communications with peripheral Cypress WPAN accessories (Man-Down Pendant, etc). The WPAN Gateway can store customized settings for baud rate, attached devices, general configuration, etc. A maximum of 16 connected devices are supported at any one time.
A WPAN Gateway can be connected to the DCE device serial port via a DB-9 interface. The WPAN Gateway provides a “gateway” for communication between the various Cypress WPAN products and other serial (DCE) data communication equipment such as wireless data modems. A WPAN Gateway is defined as data terminal equipment (DTE) that connects to other data communications equipment (DCE) devices via a 9 pin DB-9 connector. If the WPAN Gateway is connected to a PC, a null-modem cable is required to facilitate communications. The WPAN Gateway sends/receives text based (NMEA style) messages based on communications with peripheral Cypress WPAN accessories (Man-Down Pendant, etc). The WPAN Gateway can store customized settings for baud rate, attached devices, general configuration, etc. A maximum of 16 connected devices are supported at any one time.
The WPAN Gateway supports AT style commands (AT^) for configuration. These commands can be entered using a terminal windows program such as HyperTerminal®. A null-modem cable is required to enable communications between a PC/laptop and the WPAN Gateway. In order to save the configuration, an AT&W command must be used. Configuration will be lost after a power cycle if the configuration is not saved.
Shown above: DB-9 Standard Gateway Pin out (left) and tethered DB-9, Windshield and Rooftop Gateway (right) configuration
| DB9 Pin | Signal | Name | Direction |
| 1 | DCD | Data Carrier Detect | Serial Modem to WPAN Gateway |
| 2 | RxD | Received Data (by DTE) | Serial Modem to WPAN Gateway |
| 3 | TxD | Transmitted Data (by DTE) | WPAN Gateway to Serial Modem |
| 4 | DTR | Data Terminal Ready | WPAN Gateway to Serial Modem |
| 5 | GND | Signal Ground | - |
| 6 | DSR | Data Set Ready | Serial Modem to WPAN Gateway |
| 7 | RTS | Request To Send | WPAN Gateway to Serial Modem |
| 8 | CTS | Clear To Send | Serial Modem to WPAN Gateway |
| 9 | RI | + 3.9 V | Serial Modem to WPAN Gateway |
Note: If Pin 9 on the Serial modem can be configured to deliver 3.9 Vdc +/- 10% then no external DC power jack will be required.