Used for In-Field Firmware upgrade 
through a 307USB Direct Connect 
Interface. See Connecting to 
WinLoad on page 58 for details.
Antennas
Do not cut, bend or 
alter the antennas and 
ensure that electrical 
wires do not cross 
over the antennae, as 
this may affect signal 
reception.
Four pin connector can 
be used for quick 
installation of a 
MG5050 keypad.
Refer to AC Power 
& Backup Battery  
Connections on 
page 2.
Paradox Memory Key 
(PMC-4, PMC5)
Charge LED:
Charging and battery test 
LED
Status LED: 
• Flash once every second = 
Normal
• Flashes ON 1 second and 
OFF 1 second = Any trou-
ble 
• Always ON = Panel is 
using phone line 
• Fast flash 6 seconds after 
power up = Installer lock 
enabled 
"RX" & “TX” LED:
Flashes quickly when 
receiving or transmitting RF 
signals from wireless 
devices.
To metallic 
enclosure
Ground 
clamp
AWG#14 single 
conductor solid 
copper wire
Cold 
water 
pipe 
grounding
The "BELL" output will 
shutdown if the current 
exceeds 3A.
Refer to Single Zone 
Inputs
 on page 12
Max. amount of keypads = 15 keypads
Max. current = 700 mA
Max. distance of keypad from panel = 76m (250 feet)
Max. total run of wire = 230m (750 feet)
AUX Power 
Refer to transformer requirements on page 2 for Aux. Power 
Output. To connect additional wiring to auxiliary power, use 
the red (+) and black (-) keypad connectors. Auxiliary power 
will shut down if current exceeds 1.1A. If the auxiliary output 
is overloaded and is shut down, you must disconnect all 
loads from the output for at least 10 seconds before 
reconnecting any load back to the auxiliary output.
This equipment must be installed and 
maintained by qualified service personnel only.
For UL and C-UL warnings, refer to the UL and 
C-UL Warnings section at the back of the 
Reference & Installation Manual.
The sum of the current drawn from the BELL and AUX must be 
limited to 1.3A (40VA transformer strongly recommended). 
Exceeding this limit will overload the panel power supply and lead 
to complete system shutdown.
Connection for Self-Contained Bell/Siren
Press and hold the 
RESET button for five 
seconds. The STATUS 
LED will start flashing. 
Within 2 seconds of 
this flashing, press the 
reset switch again. The 
panel will reset to 
default and restart.
EBUS and Dialer used for 
VDMP3 plug-in voice module 
for voice reporting.
PGM Trigger: This 
jumper allows you to 
choose whether the solid 
state relay PGM (PGM4 
only) is grounded (-), or 
gives out 12V (+).
For the keypad’s zone 
configurations, refer to the 
Installer Quick Menu. If 
EOL is enabled: see section 
[706] option [2]. Also refer to 
Single Zone Inputs on 
page 12.
Disconnect 
telephone 
line before 
servicing.
MG5050 EN 50131 Immunity to Attenuation Test
When performing the attenuation test, replace antenna A with the following:
• For a 433 MHz panel, use an antenna with a length of 10.2 cm (4 in.)
• For a 868 MHz panel, use an antenna with a length of 6.1 cm (2.4 in.)
Once the test is complete, reinsert the original antenna (A) in its place, and 
connect the wires (not shown) to a zone input programmed for tamper.
A
B
Tam,per 
antenna for 
EN 50131 
compliancy