Aiphone installation manual External recording device and AI-900CO connection

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12.7.2. External recording device and AI-900CO connection

An external recording device can be connected to each telephone line.

[Connection]

To connect the external recording device, use a twisted pair cable for voice output, and a twisted pair cable for control output. The voice output is 0 dB* and of unbalanced type. The control output is an open collector output o f 20 mA, 24 V DC max. Connect as shown below.

*0 dB = 1 V

External recording device and AI-900CO connection

To voice input (HOT)	2 twisted pair cables
	2 twisted pair cables
To voice input (GND)
To recording start input (HOT)
To recording start input (GND)

Recording device

2 twisted pair cables

AI-900CO

CN1

CN2	Line 1 for
	recording

CN3
CN4	Line 2 for
	recording

HOT Voice output

GND

HOT Control output

GND

HOT

GND Voice output

HOT Control output

GND

Recording device

Front view of the circuit board

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Contents Voice Security System Installation ManualTable of Contents Speech and Function Tests Safety Symbol and Message Conventions Safety PrecautionsWhen mounted on a wall When the Unit is in Use Applicable to the exchangeApplicable to the exchange FCC Requirements Industry Canada Requirements Features Installation PrecautionsGeneral Description System Configuration System Configuration and Equipment FunctionsEquipment Functions AI-900MF Main Frame Nomenclature and Functions Installation and Connection Procedures Equipment Installation AI-900MF Main FrameRack mounting 55.2 AI-PU200 Power Transformer Unit Wall mounting AI-RS150, AI-RS160, AI-RS170 and AI-RS180 Substations Dimensional diagramDesk-top mounting Master StationAI-900MF Card Installation Backup Battery InstallationBattery replacement Card Installation Wiring from the Station or Outside Line WiringSupplied Connector Connection AI-900MS Master Station Interface Card Connection Station Address SettingView a Master Station and AI-900MS connectionAI-900MS and AI-MS900 connection ConnectionCN3 CN4 External recording device and AI-900MS connectionExternal speaker connection AI-MS900 Master Station Connection and AdjustmentTelephone and AI-900AL connection AI-900AL Telephone Interface Card ConnectionSetting of telephone volume switches on the AI-900AL card Setting telephones talking volume levelsExternal recording device and AI-900AL connection Substation and AI-900RS connection AI-900RS Substation Interface Card ConnectionExternal amplifier and AI-900RS connection Outside line and AI-900CO connection AI-900CO Outside Line Interface Card ConnectionExternal recording device and AI-900CO connection AI-900AF Audio Function Card Connection Amplifier and AI-900AF connectionExternal amplifier and AI-900AF connection External sound sources and AI-900AF connection External sound source and AI-900AF connectionAI-900TI Tie-Line Interface Card Exchange Interconnection Termination resistance settingExchange interconnection by means of AI-900TI Exchange No. setting Exchange Number SettingAI-900MF and power supply connection Programming PC Connection Main Frame and PC ConnectionDirect connection by means of RS-232C Direct connection by means of RS-232C Programming PCConnection via modem Programming PC Connection via modemDirect connection by means of RS-232C Operation log PC Operation Log PC ConnectionConnection via modem Operation log PC System ProgrammingSpeech Test Speech and Function TestsFunction Test Calls from the substationSpecifications AccessoriesAI-900MS Master Station Interface Card AI-900RS Substation Interface Card AI-900AL Telephone Interface CardAI-900AF Audio Function Card AI-900CO Outside Line Interface CardAI-YC303 Main Frame Wall Mounting Bracket AI-900TI Tie-Line Interface Card