Chapter 7: Connectors And Pin Assignment; Transceiver Rear Side; Figure 46: Location Of Accessory Connector - Rear Side; Table 45: 26-Pin Accessory Connector - Motorola MTM800 FuG Installationshandbuch

Chapter
7
Connectors and PIN Assignment

Transceiver Rear Side

Figure 46: Location of Accessory Connector – Rear Side
Caution: 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 45: 26–PIN Accessory Connector
PIN Function
1 UART1_TXD / USBx_D+
2 UART1_RXD / USBx_D-
3 UART1_RTS / USBx_VBUS
4 GND_USBx
5 1-WIRE
6 KEYFAIL / FLASH
7 SWB +
8 GND_MAIN
Description
USB 1.1 – Default Host
RS232 or UART2 – Alternative Setting
Note: When Expansion Head is connected – the connection
is USB1.1. UART2 is configured on DB9 interface on the
expansion Head. The radio monitors DB9 interface to detect
cable connection/disconnection based on PIN voltage level
of RX and DTR lines. When Expansion Head is not
connected – the connection can be configured to UART2 in
the CPS codeplug (default setting is USB1.1).
Note: If not radio with BSI SW, then using codeplug setting
it can be changed to UART2, else it is USB1.1.
1-Wire standard port (pulled via 2K2 to 5V inside U600)
Key load (pulled via 10K to 5V)
Flash input (>10V will trigger Flash mode)
A+ voltage (limited to 14V) with 1A current limitation
Main and power ground
2 26
1 25
Table continued...
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