Overview
iSTAR Ultra Installation and Configuration Guide 1–3
The ACM supports a total of 8 readers in any combination of the following:
RS-485 RM Reader (8 readers across 8 ports)
Wiegand Reader (8 readers)
There are eight basic sections, on each ACM, that support the total of eight Readers. Each
section has:
One Reader port (either)
• One RM / RS-485 Reader port*
• One Wiegand signaling port*
Three supervised Inputs
Two relay Outputs
One AUX output (12 Vdc)*
* The AUX power and whichever reader power is used, are limited to a total of 1.5 Amp.
See Chapter 5, "Access Control Module (ACM)" for more information.
IP-ACM Ethernet Door Module
The IP-ACM Ethernet Door Module v2 provides connection and management of access
control for two readers. The GCM supports a maximum of 32 IP-ACM modules with 1 reader
per IP-ACM or a maximum 16 IP-ACMs with 2 readers per IP-ACM. The limiting factor is a
maximum of 32 readers.
See Chapter 6, "IP-ACM Ethernet Door Module v2" for an overview of the IP-ACM module.
For more information regarding the features and installation of the IP-ACM, refer to the
IP-ACM Ethernet Door Module v2 Quick Start Guide.
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