DSE DSE8661, Operator'S Manual, Page: 16 / 120

Specification
16
3.9 COMMUNICATION PORTS
NOTE: For further details of module configuration, refer to DSE Publication: 057-215
DSE8661 Configuration Suite Software Manual.
NOTE: All communication ports can be used at the same time.
Port Specification
USB Slave Port
Type B USB 2.0
For connection to PC running DSE Configuration Suite
Max distance 6 m (20 feet)
USB Host Port
Type A USB 2.0
Capability to add a maximum of 16 GB USB storage device for
data recording only
Serial Communication
RS232 and RS485 are both fitted but and provide independent
operation
RS232 Serial Port
Non – isolated
Max Baud rate 115 kbaud subject to configuration
TX, RX, RTS, CTS, DSR, DTR, DCD
Male 9 way D type connector
Max distance 15 m (50 feet)
RS485 Serial Port
Isolated
Data connection 2 wire + common
Half Duplex
Data direction control for Transmit (by s/w protocol)
Max Baud Rate 115 kbaud subject to configuration
External termination required (120
Ω
)
Max common mode offset 70 V (on board protection transorb)
Max distance 1.2 km (¾ mile)
Ethernet Port
RJ45 Ethernet connection for TCP/IP
Auto detecting 10/100 Mbit Ethernet port
Auto MDIX to remove need for crossover cables
Max distance 100 m (328 feet) between routers
DSENet® (Expansion Comms)
Port
Non-isolated
Data connection 2 wire + common
Half Duplex
Data direction control for Transmit (by s/w protocol)
Baud Rate 115k
Internal termination fitted (120
Ω
)
Max common mode offset ±5 V
Max distance 1.2 km (¾ mile)
MSC Link Port
Isolated
Standard implementation of slow mode, up to 250 kbaud.
External termination required (120
Ω )
Max common mode offset 70 V (on board protection transorb)
Max distance 250 m (273 yards)