Two Technologies JETT XL, Руководство пользователя

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C
OMPONENTS AND
I
NDICATORS
2-3
U
SING THE
5VDC O
UTPUT
L
INE TO
P
OWER
E
XTERNAL
D
EVICES
The JETT supplies only one +5 VDC line. The +5 volts supplied from the JETT•connect is the same line
supplied for JETT•pack integration. The +5 VDC line to the JETT•pack does not have the charging
protection components so output voltage will be higher by approximately 0.3V to 0.4V.
The following table shows the typical voltage versus current values when using the 5VDC output line to
power external devices
Table 2-3: 5VDC Typical Output Line Voltage versus Current Values
Load Current Voltage Out
50 Ohms 0.086 Amps 4.59 Volts
30 Ohms 0.14 Amps 4.54 Volts
25 Ohms 0.23 Amps 4.43 Volts
15 Ohms 0.3 Amps 4.37 Volts
12.5 Ohms 0.35 Amps 4.34 Volts
11 Ohms 0.4 Amps 4.29 Volts
8.5 Ohms 0.5 Amps 4.21 Volts
Note: Verify your intended use and current/draw with a properly configured JETT over your expected
environmental conditions prior to product deployment.
DE-9 C
ONNECTORS
The DE-9 connectors emulate standard serial pin-out connections, and allow you to connect the JETT to
most desktop PCs using a standard null modem cable.
Figure 2-4: DE-9 Male Interface Connector
Viewed facing connector
Figure 2-5: DE-9 Female Interface Connector
Viewed facing connector
RS-232 Interface Pin-Outs
Pin 1 = DCD Pin 6 = DSR
Pin 2 = RXD Pin 7 = RTS
Pin 3 = TXD Pin 8 = CTS
Pin 4 = DTR Pin 9 = 11-18VDC Input
Pin 5 = Ground
RS-232 Interface Pin-Outs
Pin 1 = DTR Pin 6 = DTR
Pin 2 = TXD Pin 7 = CTS
Pin 3 = RXD Pin 8 = RTS
Pin 4 = DSR/DCD Pin 9 = 11-18VDC Input
Pin 5 = Ground