Lenovo ThinkPad i Series 1157 Reference

Also see for 570: Reference guide Setup guide

Lithium-ion battery packThe large-capacity lithium-ion battery pack extends the operatingtime of your computer, further enhancing its portability.Built-in modemThe integrated modem enables you to send or receive data, faxes,and voice over a telephone line. Supporting V.90 protocol and datarates of up to 56 Kbps, the modem makes communication easy andefficient when you are away from your office.To use the ThinkPad modem functionOnline User's Guide.PC Card supportYour computer provides two PC Card slots that accept a 16-bit PCCard, CardBus Card, or Zoomed Video Card.To install a PC Card “Using a PC Card” on page 81.Capability for further expansion, flexibility, and communicationYou can further enhance your ThinkPad 570's functionality byattaching it to the ThinkPad 570 UltraBase and a port replicator(ThinkPad 560 Port Replicator or ThinkPad Port Replicator withAdvanced EtherJet Feature).The ThinkPad 570 UltraBase allows you easily add such options asa second battery, CD-ROM drive, DVD-ROM drive, or many otheroptions. The port replicator provides cable management and easyEthernet connectivity.With these options your computer can be both portable when you aremobile and emulate a powerful desktop computer when you are inyour office or home.For more information “Extending the features of your computerwith the ThinkPad 570 UltraBase and port replicators” on page 84.vi IBM ThinkPad 570 User's Reference