CalAmp GUARDIAN User Manual download pdf (Page 59)

A Y-cable is required for this option (with transmit connections split to the transmitting device and receive connections

split to the receiving device). A computer with 1 COM port is utilized for this option.

Table 16 Y-Cable Connections

Pin Name

DE-9

DB-25

Computer

DCD 1 8 X X –

RxD 2 3 X X –

TxD 3 2 X – X

DTR 4 20 – – –

GND 5 7 X X X

DSR 6 6 – – –

RTS 7 4 X – X

CTS 8 5 X – X

RI 9 9 2 – – –

X = Requires Connection

– = No Connection

5.18 ARRAY TEST

The Array Test window is accessed from the Utilities menu. The Array Test is used to send programmable length test

packets. See Table 16 above for Y-Cable Connections.

Figure 34 Array Test Window

Packets Tx’d

Total number of packets transmitted.

# of Packets to Send

Allows the user to set the total number of packets to send before stopping. (Field range is 0 to unlimited.)

Guardian™ Serial Modem or Analog Radio for Licensed Spectrum PN 001-5006-000 Rev. 3 | Page 51

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CalAmp GUARDIAN User Manual Page 59