SpectraLink 150 M3 MCU manual Connect the OAI Telephony Gateway to the MCU

SpectraLink Corporation Link WTS Installation and Operation

13.5 Connect the OAI Telephony Gateway to the MCU

1.The OAI Telephony Gateway must be connected as the last box in the MCU chain. Connect the OAI Telephony Gateway to the OUT port on the MCU, using the IPC cable supplied.

2.Double-check that the IN and OUT ports are correctly connected on all MCUs. The first MCU will have no connection to the IN port; the last MCU is connected to the OAI Telephony Gateway. The following diagram shows a chain of four MCUs and the OAI Telephony Gateway.

Do NOT stack the MCUs and OAI Telephony Gateway on top of each

!other. Units should be placed side by side physically touching the adjacent unit.

3.Power up the entire system.

∙The Power and IPC LEDs on front panel of the OAI should be on. If the IPC LED remains off, try replacing the IPC cable. If this does not correct the problem, or if the Error LED is on, contact Customer Service.

∙All the MCUs should go through their usual diagnostic routine, and a unique Box ID should display on the status LEDs of each MCU. If this does not happen, recheck the IPC wiring.

Part Number: 72-0075-01-C-W.doc Page 48