CalAmp Viper 100 User Manual page 11

Contact
6
7
8
SHELL
(1) The name shows the default function. Given the Auto-MDIX capability of the Ethernet transceiver, TX and RX function
could be swapped.
1.3.3.2 SETUP AND COM PORTS
The SETUP and COM serial connections are DE-9F RS-232 ports. Refer to Table 3 for pin out descriptions and Section 4.3.4
for control line configuration of DCD, DTR, RTS and CTS control lines.
Serial port considerations:

Viper SETUP and COM ports are Data Communication Equipment (DCE) devices

In general, equipment connected to the Viper SC's serial ports is Data Terminal Equipment (DTE) and a straight-
through cable is recommended.

If a DCE device is connected to the Viper serial ports, a null modem cable/adapter is required.
Table 3 – Pin-out for DCE SETUP and COM port, 9 Contact DE-9 Connector
Contact EIA-232F Function
1 DCD(1)
2 RXD
3 TXD
4 DTR
5 GND
6 DSR(2)
7 RTS(1)
8 CTS(1)
9 RING (3)
(1) Programmable (2) Always asserted (3) For future use
1.3.3.3 POWER CONNECTOR
Viper is supplied with a right-angle power connector (10-30 VDC). Table 4 shows the pin-out of the power connector.
Table 4 – Power Connector Pin-out
Contact (Left to Right)
4
3
2
1
10 Base-T Signal
RXN(1)
SPARE
SPARE
Shield
Signal Direction
DTE ← DCE
DTE ← DCE
DTE → DCE
DTE → DCE
DTE --- DCE
DTE ← DCE
DTE → DCE
DTE ← DCE
DTE --- DCE
Color Description
Fan Power Output (5V)
Black Ground
Red Positive (10-30) VDC
White Enable
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