Specifications

i50 Manual (5.10)

Page 10

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4.3 Program Connector

The i50 Program connector is used to update the unit’s firmware and adjust settings. It may also be

used to access the i50 COM1 port (see section 4.5.4). Firmware can be updated by connecting a PC

to the Program port and running the firmware update utility.

Table 2 shows the pin assignment of the Program connector, including the connections required to

attach a female DB-9 connector. Pin 1 is located on the right side looking into the connector on the

front panel. All pins (except VOUT and GND) use RS-232 voltage levels.

RJ-45 Pin

Pin Name

Direction (relative to i50)

DB-9 Pin (female)

VOUT

Output

MODE

Input

7 (RTS)

Input

3 (TX)

STATUS

Output

6 (DSR)

Output

2 (RX)

RESET

Input

4 (DTR)

Not used

GND

5 (GND)

Table 2 – Program Connector

VOUT: Switched power output. See section 4.2 for more information

MODE: Used to enter firmware programming mode. Turn off (low) for normal use

RX: Data input

STATUS: Indicates CPU mode

TX: Data output

RESET: Used to reset CPU. Must be turned off (low) for normal operation

GND: Ground

Note: this pin layout has been chosen so that a Datalink Mobile Data Terminal (MDT) can be plugged

in using a standard RJ-45 to RJ-45 LAN cable. The MDT provides an LCD screen and keypad for

applications where an advanced user interface is required.