Safety Instructions; Wiring Recommendation - Safran MorphoAccess J Series Installation Manual

Section 1: Introduction

2. Safety instructions

Wiring recommendation

Diameter
AWG
(mm)
18 1.02362
20 0.8128
25 0.45466
28 0.32004
4
The installation of this product should be made by a qualified service Person
and should comply with all local regulations.
It is strongly recommended to use a class II power supply at 12V ±5% and
0.5A. min (1A with Wi-Fi™ option) in conformity with Safety Electrical Low
Voltage (SELV). The 12V power supply cable length should not exceed 3
meters.
This product is intended to be installed with a power supply complying with
EN60950, in accordance with the NEC Class 2 requirements; or supplied by a
listed EN60950 external Power Unit marked Class 2, Limited Power source, or
LPS and rated 12VDC, 0.5A minimum (1A with Wi-Fi™ option).
In case of building-to-building connection it is recommended to connect 0V to
ground. Ground cable must be connected with the terminal block 0V GND.
Note that all connections of the MorphoAccess
hereafter are of SELV (Safety Electrical Low Voltage) type.
Morpho recommends to use a gauge AWG18 for 12V power supply when POE
supply is not use.
For information, this table shows the maximum weakening voltage observed
on the terminal MorphoAccess
Maximum weakening @ 1m
0.015 V
0.023 V
0.074 V
0.149 V
Weakening = loss of voltage due to wire resistance and length
The voltage at the input of the MorphoAccess
voltage at the output of the power supply (V1) minus the weakening (Va), i.e.
V2=V1-Va.
M
ORPHO
®
MorphoAccess J Series – Installation Guide
®
J Series terminal described
®
J.
Maximum weakening @ 3m
®
J terminal (V2) is equal to the
DOCUMENT SSE-0000077503-04 - M
D - R
OCUMENT EPRODUCTION AND DISCLOSURE PROHIBITED
0.044 V
0.070 V
0.223 V
0.447 V
2011
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