Motorola Solutions Inc. 99FT4100 Manual De Usuario

5

Unused

N/A

6

Ethernet Rx-

5 V differential data

7

Unused

N/A

8

Unused

N/A

This connection supports the analog interface to the SLR 1000 Repeater, which includes audio, station
control, station indicators, and provisions for timing used in various system implementations. 

Figure 16:

Auxiliary/Accessory Connector on page 55

 shows the location of the pins and 

Table 18: Auxiliary/

Accessory Connector Callout Legend on page 55

 lists the functional characteristics of the

connector’s pins.

Table 18: Auxiliary/Accessory Connector Callout Legend

1

Tx Audio 1

Audio

Transmit Audio – Nominal input level is 80 mVrms for 60%
deviation with scaling factor set to 100%. 600 Ω input im-
pedance.

2

GPIO 6

Digital

Output Logic Low: 0.5 VDC max
Output Logic High: Open Collector with 10 k pull-up to 5 V

Input Logic Low: 0 – 0.8 VDC

Input Logic High: 3.0 – 14 VDC

3

Igition Sense
Control

Controls power to the unit if the internal jumper is config-
ured correctly.

4

Ground

5

GPIO 7 Analog
RSSI Out

Digital
or Ana-
log

Output Logic Low: 0.5 VDC max
Output Logic High: Open Collector with 10 k pull-up to 5 V

Input Logic Low: 0 – 0.8 VDC

Input Logic High: 3.0 – 14 VDC

Analog RSSI:

Typically 0.5 VDC for -120 dBm to 2.7 VDC for -60 dBm
carrier. Variation with carrier level at approximately 50 mV/
dBm.

6

GPIO 9/ *Analog
Input 1

Digital

Output Logic Low: 0.5 VDC max
Output Logic High: Open Collector with 10 k pull-up to 5 V

Input Logic Low: 0 – 0.8 VDC

Input Logic High: 3.0 – 14 VDC

Analog: 0 – 5 VDC

MN003557A01-AA

Chapter 5:  SLR 1000 Bottom Panel

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