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Telos Zephyr Xstream Two-Way Radio User Manual

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USER’S MANUAL

Section 3: GUIDED TOUR of the HARDWARE 31



ParallelControlPort

Theparallelcontrolporthas8inputsand8outputsthatcanbeusedinavarietyofways.For

instance,inAAC,AAC‐LD,Layer3andcertainLayer2modes,thesecontactclosurescan

communicatebetweentwoZephyrXstreams.BygroundinganinputonthelocalXstream,you

wouldtheref

orecausecurrenttoflowintothecorrespondingoutput,atthefarendunit.These

canalsobeusedforlocalcontrolandtomonitorlocalstatusseeSection11hasadditional

informationontheuseofthisport.

Z

ZEPHYR CLASSIC VS. XSTREAM COMPARISON!

The original Zephyr has only four inputs and outputs numbered 0-3 while the Xstream has 8

inputs 0-7. The four inputs and outputs of the Zephyr will communicate with the first four

inputs and outputs of the Xstream (i.e. 0-3)

PIN FUNCTION

1 +5 Volts DC 400 mA max

2* Output 0

3* Output 1

4* Output 2

5* Output 3

6 Output 4

7 Output 5

8 Output 6

9 Output 7

10 No Connection

11 No Connection

12 No Connection

13 No Connection

14* Input 0

15* Input 1

16* Input 2

17* Input 3

18 Input 4

19 Input 5

20 Input 6

21 Input 7

22 Not Connected

23 Not Connected

24 Not Connected

25 Ground

*

These pins are compatible with the

corresponding input/outputs of the

Zephyr.

NOTE: Pin 1 is connected directly to the +5 volt power supply. Failure to limit current

draw on this pin could cause hardware damage or system instability.

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