Select Engineered Systems TEC1A Series - TEC1 A Power

TEC1A Installer Guide
01/20
Rev B2
Page 9 of 11
The exception is when connecting additional SES access controllers. In this case, an
optional MUI plug-in board must be used, allowing up to four SES Access Controllers
to be connected on the same line.
1.4.3.2 TEC1A Power
Power can be supplied in ONE of two ways. Either:
1. Using the SES-supplied 16.5 20 VA transformer OR
2. Connecting an external 12v DC source
WARNING
Do not use both connections at the same time. Damage to the TEC1A may occur and
void the warranty.
The SES transformer wires should be connected into the terminal pair “AC” and “AC” on
connector P1. Plug the transformer into a standard 110v ac mains socket.
If used instead, the external battery should be connected into the terminals “+12” and
“COM” on connector P1 with NO connections on “AC” and “AC”. Do not use “COM”
associated with either the REX inputs or Relays to supply battery power.
For an external 12V DC source, idle current consumption is as follows:
12V DC IDLE Current Table
LCD
Display
Idle Current (mA) Per Model
Basic
Deluxe
Premium
2-Line
55
79
139
4-Line
82.5
106.5
166.5