Western Telematic AFS-16-1 User's Guide

AFS-16Automatic Fallback SwitchUser's Guide

2.3. The Circuit ModuleThe AFS-16 can accept up to sixteen Circuit Modules. EachCircuit Module includes a common jack, jacks for "A" and &qu

3. Installation3.1. InitializationPrior to first time installation, the AFS-16 should be initializedusing the following procedure:Note:The initializat

3.3.1. RS232 Port Baud Rate JumperThe RS232 Port can be set for 1200, 2400, 9600 or 19.2K bpsusing Jumper J1 (Figure 3.1).·1200 bps: Place jumper at p

3.4. Circuit Module SetUpThe A/B Switch Jumper (Figure 3.2) enables/disables theindividual Circuit Module's response to the Master A/B GangSwitch

3. Manual A/B Switching: Use the manual switches tochange A/B paths. Note that this example assumes theMaster A/B Gang Switch has not been disabled.a)

4. SetUp and Configuration4.1. Communicating with the ControlModuleThe AFS-16 can be controlled by simple ASCII commands sentto the Control Module RS2

1. Location ID: Can be appended to the Notify Message andmay also be sent at any time to verify the identity of theunit. Up to 32 characters. Any char

4.3. View / Change Circuit ParametersThe ]P command allows the user to define parameters for eachCircuit Module. Note that the ]P command can also def

2. "A" Name: Assigns a name to the "A" Jack (Up to eightcharacters). Note that this name is used for referencepurpose only, and ca

5. OperationThe AFS-16 offers three different methods for switching A/Bpaths:1. Manual A/B Switching: Manual A/B Switches are used toinitiate switchin

5.2. Code Activated A/B SwitchingThe AFS-16 will also switch A/B paths in response to simpleASCII commands sent to the Control Module. To switch A/Bpa

When configuring a Circuit Module for the Monitor Mode, notethe following:·Only one Circuit Module may be configured for the MonitorMode at a given ti

4. Type ]P N and press [Enter] (where "N" is the CircuitModule selected for Monitor Mode setup). When theCircuit Parameters Screen appears (

a) 8. Switch if Level: Specifies the signal level that willtrigger the switch/notify routine. The user may selectLevel 1 (High; above 2.0 volts) or Le

5.4. The Status ScreenThe Status Screen, shown in Figure 5.2, lists the current status ofall AFS-16 Circuit Modules. To display the Status Screen, typ

6. Application Examples6.1. Monitoring Signal Dropand/or Power LossIn this application, the AFS-16 will monitor the DTR signal froma data device. If t

b) Press [Esc] to exit the System Options Menu and returnto the AFS> prompt.4. Set Circuit Parameters: For this example, Circuit Module4 will be us

6.2. Monitoring a Switch or RelayIn this application, the AFS-16 will monitor a switch or relay.When the switch closes for more than one minute, the u

3. Set Circuit Parameters: For this example, Circuit Module3 will be used for Monitor Mode setup. Type ]P 3 andpress [Enter]. The Circuit Parameters M

7. Command SummaryAll AFS-16 commands conform to the following standards:·All commands begin with the "]" (Close Square Brackets)character.·

Table of Contents1. Introduction...1-12. Unit Description...2-13. Installatio

]T Toggle Switch PositionToggles the A/B position for the desired Circuit Module asdescribed in Section 5.2. Invoke the ]T command as follows:]T N,P [

A. Interface DescriptionsA.1. RS232 Control PortA.1.1. WTI Modular Adapters* = Supplied with Unit

A.2. The AUX PortA.3. Common Ports and A/B PortsA.4.Connecting a Modem to the AUX Port

B. SpecificationsSwitch Card: Up to 16 ModulesInterface: RJ45-3, Three Jacks, 8 Pins Switched CommonJack to A or B Jack.Contacts: High Reliability, Me

C. Customer ServiceCustomer Service hours are from 8:00 AM to 5:00 PM, PST,Monday through Friday. When calling, please be prepared togive the name and

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List of Figures

1. IntroductionThe AFS-16 is a versatile switching system, designed forapplications that require automatic routing of analog or digitalsignals between

Typographic ConventionsThroughout this manual, typefaces and characters have been usedto denote the following:COURIER FONT Indicates characters typed

2. Unit DescriptionThe AFS-16 consists of a frame unit, one Power Supply Module,one Control Module, and up to sixteen Circuit Modules.2.1. The Power S

2.2. The Control ModuleThe Control Module, shown in Figure 2.2, coordinates switchingof the individual Circuit Modules. The Control Module includesa M

ÂRXD Indicator: Lights when commands or data arereceived via the Control Module's RS232 Connector.ÃRS232 Connector: An RJ-11 jack for connection