Specifications

P/N 66104700001 Rev. F 1-1
SECTION 1: CI-1 SINGLE
COMMUNICATIONS INTERFACE
DESCRIPTION
The CI-1 can be used to connect up to four ACUs to a single host computer and to extend the
distance between an ACU and host computer to 2000 ft (610 m) A block diagram of a typical CI-
1 installation is shown in Figure 1-1. The CI-1 is designed to operate only with WSE access
control equipment, and only as described herein. For other applications, contact WSE Customer
Support.
Figure 1-1: CI-1 Installation Block Diagram
ACUs connected to a host through the CI-1 may be any combination of WSE NexSentry, Alto 818
and SE 808 devices using 20 mA loop communication. The CI-1 to host connection uses RS-
232 communication over a maximum distance of 25 feet (7.6 meters). The CI-1 to host
communication may be at a baud rate of up to 9600. Figure 1-2 shows the front of a CI-1.