SpectraLink Link 150 M3 MCU - Manual (Page 31)

SpectraLink Corporation Installation and Operation
Link WTS – Link 150 M3 MCU
7. Connect and Register Handsets
7.1 Set Up Diagnostic Modem
Each MCU has an internal modem feature that allows SpectraLink technicians to dial
into the system for troubleshooting and maintenance. The modem is enabled on
Line 1 when no handset is registered to Line 1. When enabled, the modem will auto-
answer an incoming call to that line.
 This internal modem uses proprietary communication software. You
cannot use commercial software packages to access this software. If you
have a multiple MCU system, you only need to enable one modem line,
on Line 1 of MCU 1. Line 1 positions on the other MCUs can be used for
handsets.
To set up the diagnostic modem:
1. Connect an analog Direct Inward Dial (DID) line to Analog Interface MCUs
(SCA-5XX) or a digital DID line to Digital Interface MCUs.
2. Move the mode switch to the REGISTER position. The LED for Line 1 should be
off, indicating that no handset is registered to Line 1. If the LED is on then a
handset is registered to the line. Refer to section 7.3 Unregister Handsets.
3. Dial the number associated with the DID line. After one or two rings, you
should hear the high-pitched modem answer tone.
7.2 Register Handsets
Before a handset can be used it must be registered to a line on one of the MCUs.
While handsets are being registered, the system will continue normal operation.
Use the filled out by the system administrator to be sure you are correctly assigning
each handset to its port and extension number.
All lines are unregistered when shipped from the factory. However, if you are
replacing a failed MCU you may not need to register the handsets. Refer to section 9
System Administration for details.
 Line 1 MCU 1 may be skipped to allow for remote access through the
diagnostic modem.
Each MCU supports eight simultaneous conversations. To optimize
performance and reduce the possibility of call blocking, distribute the
handsets evenly across all MCUs.
To register a handset to your system do the following:
1. Be sure all unregistered handsets are powered off and that there is a Base Station
plugged in and within range of the handsets to be registered.
2. Move the mode switch to the REGISTER position. (If your system has more than
one MCU, be sure to move the switch only on the correct MCU.) The LED
which indicates the Box ID (
1 through 4 ) may change. This is normal and is not
an error.
PN: 72-0075-01-F.doc Page 31