Cisco Physical Access Gateway User Guide, Release 1.1.0 and higher

Connecting a Cisco Input Module

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Overview

The optional Cisco Input Module (Figure 4-1) is attached to a Cisco Physical Access Gateway or Cisco Reader Module to provide additional connections for up to ten input devices. Each connection can be configured as supervised or unsupervised. A supervised connection is a four- state connection to determine if the connection is (1) short (2) is open (3)normal state or (4) alarm state. An unsupervised input indicates only normal or alarm.

Figure 4-1 Cisco Input Module

The optional Cisco Input Module is connected to a Cisco Physical Access Gateway or Cisco Reader Module using a CAN connection to provide connections for additional input devices, as, as shown in Figure 4-2.

Figure 4-2 Cisco Reader Module connected to the Cisco Physical Access Gateway

Package Contents

Each Cisco Input Module includes the following:

•20 resistors (1K) for input supervision

•2 mounting brackets, with 4 screws for each bracket

•Regulatory compliance and safety information

•Quick start guide

•Connector plugs:

Type	Quantity
3 Pin	1
2 Pin	13

Physical Overview and Port Description

Each Cisco Input Module includes 10 ports for connecting additional input devices. as shown in Figure 4-3.

Figure 4-3 Cisco Input Module Ports and Connectors

Figure 4-4 Cisco Input Module Ports and Connectors: Top View

1	Power Two-pin connector for Voltage In (VIN) and Ground (GND) to connect a 12 to 24 VDC external power source.
2	CAN interface A 3-wire CAN bus is used to connect additional modules. Note Modules are connected using the CAN1 interface. The CAN2 interface is not supported in this release.
3	CAN Terminator The CAN terminator switch is set to ON for the last device in a CAN wiring bus. This switch is set to set to OFF for all other devices in the CAN bus.
4	Input connections Ten input interfaces used to sense the contact closure. Each input can be configured as supervised or unsupervised and can be configured to sense a Normally Open (NO) or Normally Closed (NC) contact. •An unsupervised input senses a simple contact closure state, including Normal or Alarm. When connected to open contacts, the terminal voltage range is 4V to 5V. For closed contacts, the voltage range is 0V to 0.7V. •A supervised input senses four contact states, including Normal, Alarm, Open and Short. These inputs require 1K End-Of-Line (EOL) termination resistors installed at the contacts (two resistors are included in the accessory kits for each Input port).
8	PF Power fail input: an unsupervised input that raises a "power fail" alarm when the circuit is open. Can be configured as an additional unsupervised port. The corresponding LED is red when circuit is open (when no input is connected).
9	TM Tamper input: an unsupervised input that raises a "tamper" alarm when the circuit is open. Can be configured as an additional unsupervised port. The corresponding LED is red when circuit is open (when no input is connected).

Status LEDs

Each input port includes a status LED that indicates the following information:

Table 4-1 Input Module LEDs 

Status	Description
OFF	Input is not configured
GREEN	Input is configured and in normal state
BLINKING GREEN	Input is configured, and is receiving and alarm or other data.
BLINKING RED	Input is configured, short
RED	Input is configured, open

Installing the Cisco Input Module

Install a Cisco Input Module is provide additional input connections for a Cisco Reader Module or Gateway

Before You Begin

Verify the following:

•Verify that the module has access to a power source. See the "Power Options and Requirements" section on page 1-12 for more information.

•Verify that you have the necessary mounting brackets or other hardware. See the "Mounting a Gateway or Optional Module" section on page 1-14.

Procedure

To install the module, complete the following procedure:

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Step 1 Mount the module to a wall. See the "Mounting a Gateway or Optional Module" section on page 1-14 for more information.

Step 2 Connect the module to the DC power source:

a. Insert a two-pin connector plug into the DC power port (Figure 4-5)

b. Connect the Voltage In (VIN) and ground (GND) wires.

See the "Power Options and Requirements" section on page 1-12 for more information.

Figure 4-5 Power Connections for the Input and Output Modules

1	DC power GND (ground) Connects the DC ground wire to the module.
2	DC power Voltage In (VIN) Connects the DC Voltage In (VIN) wire to the module.

Step 3 Connect the module to the CAN bus:

a. Insert a three-pin connector plug into the CAN1 port, as shown in Figure 4-6.

b. Connect the CAN wires to the CAN bus, as shown in Figure 4-7

c. Turn the CAN terminator ON if the device is the last device in a CAN wiring bus.

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Note The CAN terminator switch in included on the Reader, Input and Output modules only (the Gateway is always the first device in the CAN bus). Set the terminator switch to OFF for all other modules in the CAN bus.

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Note The CAN2 interface is not supported in this release.

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See the "Optional Expansion Modules" section on page 1-5 for more information.

Figure 4-6 CAN Connections: Input and Output Modules

1	CAN+ Connects to the positive terminal of the CAN bus.
2	CAN- Connects to the negative terminal of the CAN bus.
3	Shield Connects to GND and/or Shield.
3	CAN Terminator Turn the terminator ON if the device is the last device in a CAN wiring bus.

Figure 4-7 CAN Bus Wiring

Step 4 Connect input devices to the module:

a. Insert two-pin connector plugs into the input ports.

b. (Optional, for supervised input connections only). Install two End-Of-Line (EOL) 1K termination resistors in each supervised input interface (one terminator in each connector). Figure 4-8 shows the terminator installation for a Normally Closed (NC) and Normally Open (NO) input connection.

Figure 4-8 Input Connections: Cisco Physical Access Gateway and Reader Module

c. Connect the wires from the input devices.

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Note Each of the input connections can be configured as supervised or unsupervised. The tamper (TM) and power fail (PF) inputs can be configured as additional unsupervised ports. A supervised input supports four states: normal, alarm, open and short. An unsupervised input indicates only normal or alarm.

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Step 5 See the Cisco Physical Access Manager User Guide for information to configure the module ports.

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