IBM CT-618, Installation Manual, Page: 35 / 84

Installing CT-618 Hardware
IBM CTS Installation Guide 29
jack adapter to clear some Telco cables. Music on hold should be provided to
additional boards either by using a splitter and additional audio cables, or by
connecting additional audio sources directly to the boards.
10. Plug in the Telco cable and secure it with the two wire clips (optional). If
using a cable with screws, remove the screws in the CT-618 board and use
the cable screws to secure the cable.
11. Replace the PC’s cover.
12. Reconnect the PC to the power source and start the PC. If the CT-618 green
diagnostic LED is ON, the CT-618 board has passed a self-test and self-
configuration check in your system, and has come up as a PBX with default
settings. If the LED is not ON steadily, contact IBM customer support.
5.4 Adding boards to a IBM Computer Telephony
system
Note: Do not install additional boards until you have upgraded your existing
system to the current release.
Before you start:
All CT-618 boards must be at the same firmware revision level in order to
successfully perform a firmware upgrade. This can be ensured by upgrading only
one board at a time. Boards may be upgraded in any DOS-bootable PC.
To upgrade and install additional boards in the server:
1. Install new board(s) in a DOS-bootable PC. See Installing the CT-618 on
page 28 for details.
2. Follow the firmware update process.
3. Power down the PC and remove the upgraded board(s).
4. Power down the IBM CTS.
5. Install the additional CT-618 board(s) you have upgraded. Make sure that
only one board is a master board.
6. Restart the server.