6
Entry-Master Option-4 Hardware Installation Guide
purpose, so that the connector can be disconnected from the
Reader 1 position and plugged directly onto the Reader 2 position,
without rewiring the connector.
8. It is very important that non-shielded cable be used for iButton
reader wiring. Specifically, 22AWG stranded, non-shielded cabling
is recommended. It is permissible to run the iButton reader wires
in a cable along with other signals, such as a door contact. It is
also not recommended to locate a reader more than 100 meters
(approximately 350 feet) from the Option-4 board.
D. Connecting the Inputs
1. The Option-4 circuit board has two (2) connectors for Inputs; inputs
are used to monitor doors that may have been propped open,
opened without a card, or simply as a Request to Exit, also known
as a REX button or switch, which allows a person to unlock a door
from somewhere other than at the door (i.e. a receptionist could
press a button under the desk to allow entry through the front door).
2. The connectors are labeled P10 INPUTS R1 and P16 INPUTS R2
(see the figures below, and also Figure 1 on Page 2):
P10 INPUTS R1
P16 INPUTS R2
(C1,C2,C3,C4)
(C1,C2,C3,C4)
Option-X Inputs 1, 2, 3 & 4
Option-X Inputs 5, 6, 7 & 8
