Connect Tech Blue Heat/PCI PCI Serial Communications - Manual (Page 44)

Blue Heat/PCI User’s Manual, Connect Tech Inc.
Revision 0.11 44
Appendix E: Blue Heat/PCI PTM model
Blue Heat/PCI PTM Adapter
The Blue Heat/PCI Pass Through Mux (PTM) adapter offers two asynchronous RS-232 serial
ports with Monitor Pass Through and Intercept Pass Through capabilities. In Monitor mode the
Blue Heat/PCI PTM adapter allows you to monitor and pass through the data from a device
connected to one serial port to a device connected to the other serial port. This pass through
connection is maintained even if the power or software fails in the computer hosting the Blue
Heat/PCI PTM, but without monitoring capabilities.
In Intercept mode you can monitor, process and then pass through the data from a device
connected to one serial port to a device connected to the other serial port. Once again this pass
through connection is maintained even if the power or software fails, but without
monitoring/processing capabilities.
Features
ƒ Two, asynchronous RS-232 serial ports
ƒ Supports data communications speeds up to 921 Kbps
ƒ A 16C2850 UART controls each port providing 128 bytes of TxD/RxD FIFO buffers
ƒ Independent port configuration with baud rates from 50 bps to 921 Kbps; data bits of 5, 6, 7
or 8; stop bits of 1, 1.5, or 2, and odd, even, or stick parity
ƒ Monitor Pass Through Mode: you can monitor and pass through data from a device on one
serial port to a device on the other serial port. If power or software fails the serial port
connections will default to direct pass through
ƒ Intercept Pass Through Mode: you can monitor, process and pass through data from a device
on one serial port to a device on the other serial port. If power or software fails the serial port
connections will default to direct pass through
ƒ Utilizes robust high quality Telecom DPDT relays to achieve direct pass through when power
fails
ƒ Onboard DB-9 connectors
ƒ No DIP switches or jumpers to set – full Plug and Play
Figure 17: Blue Heat/PCI PTM adapter
Female DB-9
Port 2
PCI Bridge
16C2850 dual UART
CPLD
Blue Heat-2/PCI PTM adapter
Male DB-9
Port 1
DPDT Relays