Table of Contents
Advertisement
2.11 Supervision options
Excel 4 can detect and report tampering with an input, if one of the two configurations
below is used. The two options are referred to as US and UK because of the countries in
which each type is most prevalent. The resistor(s) should be installed as close to the
switch as possible to provide maximum protection.
1-resistor supervision (US) for short-circuit
2.12 Relays
Note that relays are limited to 30V 2A non-inductive load. Any load that exceeds this
MUST be controlled using a suitable separate relay. If the load is of an inductive nature
(motors, bells, locks, relays etc.) then the load MUST have a suppressor fitted in the same
way as for a lock.
EXcel terminal
33
34
35
46
47
48
52
53
54
2.13 Memory Battery
Connect the memory battery link using the jumper J4 on the EXcel. Location can be
found clearly on the ACU Overlay Connector Label.
2.14 Dip Switches
Located at the top of the board these are: dip switch 1: ON for I/P communications.
OFF for RS232 or Rs485 communications dip switch 2-5: all ON for full RS485 termination. If
termination of RS485 is not supplied by the Converter then use dip switches on ONE
EXpert only in the RS485 daisy chain to provide termination. Termination can be put on
the first ACU in the RS485 line
tamper detection
Function
Relay 2 n/c
Relay 2 Common pole
Relay 2 n/o
Relay 3 n/c
Relay 3 Common pole
Relay 3 n/o
Relay 4 n/c
Relay 4 Common pole
Relay 4 n/o
EXcel4 Controller
2-resistor supervision (UK) for short-
circuit and open-circuit tamper
detection
Only available in the following
configurations
1 Door
1 or 2 Door
1, 2 or 3 Door
Page 18
Advertisement
Table of Contents
