B&B Electronics DCDSS1 manual Serial Ports, ISP Account

	command structure, etc.)
PAGER FAILED	Unable to contact pager or send
	message
DATA OVERFLOW	Data buffer filled, most recent data
	stored
ERROR OVERFLOW	Error buffer filled, most recent errors
	stored
PRIMARY DIALUP FAILED	Unable to connect to ISP1
PRIMARY AUTHENTICATION	Unable to verify
FAILED	username/password with ISP1
SECONDARY DIALUP	Unable to connect to ISP2
FAILED
SECONDARY	Unable to verify
AUTHENTICATION FAILED	username/password with ISP2

Serial Ports

The DCDSS1 has two serial ports. One connects to the modem; the other is for collecting the serial data.

The modem side serial port is always set up for 8 data bits, one stop bit, and no parity bit. The baud rate for the modem side serial port can be set from 600 to 115.2 kbps. A 60-byte initialization string can be programmed to be sent to the modem before the ISP number is dialed. This port is configured as a DTE device; a standard serial modem cable should be used to connect it to a modem.

The local serial port can be configured for 5 – 8 data bits, 1 or 2 stop bits, and even, odd or no parity. The baud rates for the local serial port can be set from 300 baud to 115.2k baud. This port is set up as DTE and supports TD and RD data lines.

ISP Account

The DCDSS1 allows for a primary and secondary (backup) ISP account. If the DCDSS1 is unable to connect to the primary ISP, three attempts will be made before switching to the secondary ISP for that delivery. Subsequent deliveries will revert back to the primary ISP.

Note: The DCDSS1 supports Password Authentication Protocol (PAP) for logging into the ISP. Challenge Handshake Authentication Protocol (CHAP) is not supported by the DCDSS1. The user must supply a user name and password for each ISP account. The user name and password are limited to 30 bytes each. Note that AOL, Netzero, Juno, MSN, Earthlink, and others use non-standard protocols and cannot be used with the DCDSS1.

4 Appendix A Documentation Number DCDSS11702 Manual

B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 B&B Electronics Ltd – Westlink Comm. Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445