IBM TotalStorage 2109 M12, Installation And Service Manual

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5. Optional: Connect a telephone handset to one of the telephone connections on
the modem. See Figure 19 on page 34.
6. Connect the RJþ11 Y adapter to an appropriate analog telephone line.
Note: Write down the dial-in number. You will use this number later.
7. Turn on the power to the modems. Verify that the modem-ready (MR) indicators
light on both modems.
8. Power on the switch, or restart it if you did not power off during the previous
steps. Performing this step allows the switch to recognize the modems.
Verifying modem installation
Perform the following steps to verify that the modems are installed correctly:
1. Verify that both modem cables are connected at the modem and the CP card.
2. Turn on the power to the modems if not already on.
3. Turn on the power to the switch if not already on.
4. Verify that both modems are ready by checking the following LEDs:
v Clear to send (CS)
v
Terminal ready (TR)
v Modem ready (MR)
If the LEDs do not light, ensure that the modems are connected to a power
source and have the power turned on. Also recheck the modem cable
connections on the modem and the modem port of the switch.
5. Wait until a POST completes on the switch (a minimum of 3 minutes).
6. Using a remote client dialing facility (as described in “Setting up a remote
modem system (optional)” on page 34), dial in to the customer telephone
number for the switch.
7. Observe the modem LEDs. The ring indicator (RI) LED should flash briefly as
the telephone rings. If the RI LED does not flash on both modems, recheck the
incoming telephone lines to the modems.
8. After one ring, the off hook (OH) LED on the modem that is associated with
the active CP card (usually in slot 5) should light. A login prompt displays to
the remote client. Login normally.
Note: If the OH LED on the standby CP card (usually in slot 6) lights after
seven rings, recheck the active modem cable connections of the CP.
9. Disconnect the modem session of the active CP card that is using the remote
client software.
10. Remove the Telco connector from the active CP card modem. Leave the Telco
line of the standby CP card connected to the RJ-11 Y adapter. See Figure 19
on page 34.
11. Using the remote client dialing facility, dial in to the customer telephone
number for the switch.
12. Observe the modem LEDs carefully. The RI LED should now flash only on the
modem that is connected to the standby CP card.
13. After seven rings, the OH LED on the modem that is associated with the
standby CP card should light. A login prompt displays to the remote client. A
message confirms that the standby CP card is being logged into. Login
normally, if desired, or disconnect the session.
14. Restore the Telco connector to the active CP card modem.
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IBM TotalStorage SAN Switch: 2109 Model M12 Installation and Service Guide