Motorola MTM5400 Installation Manual download pdf (Page 58)

58 MTM5400 Mobile Terminal Installation Manual INSTALLATION

Connectors and Pin Assignment of the Radio

Transceiver Rear Side - Pin Function

Figure 25 Location of Accessory Connector - Rear Side

This section gives a description of the Accessory Connector pin functions.

The accessory connections shown are not compatible to

some other models of Motorola radios. Check the

appropriate accessory or technical manual for further

information.

Table 9 26-Pin Accessory Connector

Pin Function Description

1 UART1_TXD /

USBx_D+

USB 1.1 – Default Host

RS232 or UART2 – Alternative Setting

2 UART1_RXD /

USBx_D-

3 UART1_RTS /

USBx_VBUS

4 GND_USBx

5 1-WIRE 1-Wire standard port (pulled via 2K2 to 5V inside U600)

6 KEYFAIL / FLASH Key load (pulled via 10K to 5V)

Flash input (>10V will trigger Flash mode)

7 SWB + A+ voltage (limited to 14V) with 1A current limitation

8 GND_MAIN Main and power ground

9 SPEAKER- Loudspeaker (PA) output – (NOT TO BE GROUNDED!)

10 SPEAKER+ Loudspeaker (PA) output +

11 TX_AUDIO TX audio output

12 GND_ANA Main audio ground

13 MIC1 / EXT_MIC Ext mic input / MIC1 for noise cancelling dual mic input

*Note the location of Pin 1

Accessory Connector

226

125

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 79 80

No comments

Motorola MTM5400 Installation Manual Page 58