Encompass 4 Reader System Guide
4-38
Caution
After connecting the wires in the communications cable, ground all drain wires
from the communications cable to the chass
is ground in the NEMA enclosure.
Marking the Read Zone
The area where the Encompass 4 reads tags at the current RF range is called the read
Orange/
Black
V** Black Sync_485_N RS–485 bus
negative
Used to connect
Encompass 4
Readers with IAG
capability on a
synchronization
bus
W Orange Sense
Ou
tput0_NC
Sense Output0
NC terminal
Switched sense
output for any
external control
(light, gate, buzzer,
etc.)
Green/
Black
X Black Sense
Ou
tput1_ COM
Sense Output1,
common terminal
Switched sense
output
Y Green Sense
Ou
tput1_NO
Sense Output1
NO terminal
Switched sense
output
White/
Black
Z Black Sense
Ou
tput1_ COM
Sense Output1,
common terminal
Switched sense
output
White/
Black
Z** Black Sync_485_P RS
–485 bus
positive
Used to connect
Encompass 4
Readers with IAG
capability on a
synchronization
bus
a White Sense
Ou
tput1_NC
Sense Output1
NC terminal
Switched sense
output
Yellow/
Black
b Yellow GND Logic ground Signal ground
us
ed with RS
–232
and Wiegand
c Black GND Logic ground Signal ground
us
ed with RS
–232
and Wiegand
**Use this synchronization pin designation if installing an Encompass 4 Reader that reads IAG
protocol tags. The part numbers for these readers are as follows:
10-4002-004; 10-4002-010; 10-4002-019; 10-4004-004; 10-4004-010; 10-4004-019;
10-4012-004; 10-4012-010; 10-4012-019; 10-4014-004; 10-4014-010; 10-4014-019;
Table 4-9 Sense Input/Output Cabling Assignments (continued)
Pair Pin Color Signal Description Typical Function