Connecting A Modem Or A Null-Modem Cable To The Management Port - IBM 8237 Installation And User Manual

Figure 2-4. Example 8237 Stack

Connecting a Modem or a Null-Modem Cable to the Management Port

If you have a modem or a null-modem cable to install, follow the steps given here. If
not, go to "Powering On the 8237" on page 2-7.
Figure 2-5. Location of the Management Port
2-6
8237 Hub Installation and Planning Guide
1
If you are installing a modem, unpack it and install it according to the
manufacturer's instructions.
An installed modem should be set to force Data Set Ready (DSR) signals.
Typically, this is done by setting a switch on the modem. Refer to the
documentation that came with your modem for specific instructions.
2
Connect one end of the serial cable (modem connection) or one end of the
null-modem cable (direct connection) to the 8237 port labeled Management .
• If you have a managed stack, this will be the Model 002 or Model 003
whose Prim LED is on, indicating that it is the primary management
agent.
• If you have an unmanaged stack of Model 001s, this will be any of the
units.
3
If you are installing a modem, connect the other end of the cable to the
modem and connect the modem to the telephone system. If you are
installing a null-modem cable, connect the other end of the cable to the
communications port on your computer.
4
Continue with "Powering On the 8237" on page 2-7.