RF Technology R50 Eclipse Series Instructions d'exploitation télécharger pdf (Page 9)

RF Technology R50 Page 5

if the other frequency is detected. Similarly, one

can enable/disable the default

assertion of COS and/or loop depending on which CTCSS tone is detected.

Other advanced features are:

a) de-emphasis: enabled or disabled, depending on frequency

b) start and end delays for COS and LOOP.

c) scanning interval for the priority frequency,

d) increments or decrements in the carrier level or noise level thresholds,

depending on the frequency. For example one frequency can be set to have a

higher noise threshold than another. Units are in dB of carrier signal, or

SINAD dB.

2.8 Standard Channel Parameters

Each channel can set the following standard parameters:

a) frequency,

b) one CTCSS tone, or DCS code.

3 Receiver I/O Connections

3.1 25 Pin Connector

The female D-shell, 25 pin, connector is the main interface to the transmitter. The pin

connections are described in Table 3.

Function Signal Pins Specification

DC Power +28Vdc(in)

0 Vdc

+5Vdc(out)

+12Vdc(out)

Vref

13, 25

1, 14

+15 to 32 Vdc

Common Voltage

Output for external

Logic(100mA)

Output for an external

relay(120mA)

Reference voltage

Serial

Communi

cations

SCLK

MOSI

CH_EN

SPARE_I/O1

SPARE_SEL

Serial Clock

Bi-directional Data Pin

Enables Channel Select

Shift Register

Spare Input or Output

(for future use)

Spare Select (for future

use)

600Ω Line

Output

Line+

Line-

Transformer Isolated

Balanced 600

Ω

0dBm Output

Carrier Operated

Switch

Output

COS+

COS-

Opto Coupled Transistor

Switch Output

(10mA)

External Squelch

Input

EXT_SQ 11

<1 VDC to force the

squelch to close.

>2 VDC or open ckt, to

enable the squelch

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RF Technology R50 Eclipse Series Instructions d'exploitation Page 9

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