8. Connect the VOIPDB-C1 to an Switching hub using an LAN Cable.The LAN Cable must pass two times (two rounds) through the Ferrite Core as below. (Ferrite Coreis attached with VOIPDB-C1)VOIPDB-C1 board (CN1)Ferrite CoreVOIPto HUBLAN Cable30 - 50 mm(1.181″ - 1.967″)Pass 2 times< Bottom View >Figure 2-98 Connecting a LAN Cable9. Refer to the SL1100 Programming Manual for detailed programming instructions.The VoIP feature requires system configuration.4.2.4 LED IndicationLED indications for the IP4WW-VOIPDB-C1 are listed Table 2-23 VOIPDB LED Indications onpage 2-72. Each LED is listed with its associated function and operational status.VOIPDB-C1boardLINK10LINK100LINK1000ACT< Bottom View >Figure 2-99 Location of LEDsISSUE 6.0 SL1100Hardware Manual 2-71