P-870MH-C1 Quick Start Guide Introduction The P-870MH-C1 is a VDSL modem with a four-port switch. VDSL offers high-speed Internet access. The four-port switch lets you connect up to four computers to the P-870MH-C1. Refer to the User’s Guide for detailed information.
P-870MH-C1 Quick Start Guide 1.1 Check the LEDs (Lights) • The POWER LED blinks and turns steady on. • The VDSL and/or ETHERNET LEDs turn on and sometimes blink if the corresponding ports are properly connected. If none of the LEDs are on, unplug the device and check your hardware connections again.
Page 4
• The ALARM light blinks once during system startup. If the ALARM light stays on, the system startup test has failed on your P-870MH-C1. Contact your local vendor. 3 The POWER light is on, and the ALARM light is off, but the VDSL light is blinking slowly.
Page 5
P-870MH-C1 Quick Start Guide • There might be problems with your VDSL settings or phone line. Contact your Internet Service Provider (ISP) and/or telephone company. Procedure to View a Product’s Certification(s) 1 Go to www.zyxel.com. 2 Select your product from the drop-down list box on the ZyXEL home page to go to that product's page.