2.2.2. Power and Control
This rugged connector connects to a power supply and it contains control signals. A plug with screw-
terminals and retaining screws for power and control connector is supplied with each M!DGE3. It is
Tyco 7 pin terminal block plug, part No. 1776192-7, contact pitch 3.81 mm. The connector is designed
for electric wires with a cross section of 0.5 to 1.5 mm
2
. Strip the wire leads to 6 mm (1/4 inch). Isolated
cables should receive PKC 108 or less end sleeves before they are inserted in the clip. Insert the cables
in the wire ports, tightening securely.
Tab. 2.1: Pin assignment
Signal
Labeled
Pin
SLEEP INPUT
SI
1
• pull below 1.1 VDC to activate (1.1 VDC / 1.9 VDC
threshold hysteresis)
• max. 50 VDC
HW ALARM INPUT
AI
2
• pull below 1.1 VDC to activate (1.1 VDC / 1.9 VDC
threshold hysteresis)
• max. 50 VDC
−(GND) – for SLEEP IN, HW ALARM INPUT
−
3
+(POWER) – for HW ALARM OUTPUT
+
4
HW ALARM OUTPUT
open drain output max. 50 VDC, 1 A
AO
5
+ POWER (10 to 50 V)
Undervoltage threshold 8.5 VDC
Overvoltage threshold 55 VDC
+
6
− POWER (GND)
−
7
Pins 3 and 7 are connected internally.
Pins 4 and 6 are connected internally.
Minus pole (GND) is internally connected with casing
Fig. 2.6: Supply connector
Wire
Ports (7)
Retaining
Screws (2)
Lead
Binding
Screws (7)
Fig. 2.7: Power and Control - cable plug
HW ALARM INPUT
HW ALARM INPUT is a digital input. If grounded (e.g. by connect-
ing to pin 3), an external alarm is triggered.
M!DGE3 Cellular Router – © RACOM s.r.o.
14
Product
