VG224 Cisco 24-Port Analog Voice Gateway

The VG224 is a Cisco 24-port analog voice gateway. Its 24 FXS voice ports, numbered 2/0 to 2/23, sit on a single RJ-21 connector. The ports support loop-start or ground-start signaling, provide battery, and connect to the network side of key systems and analog PBXs.

Two 10/100BASE-T Fast Ethernet ports (0/0 and 0/1) with RJ-45 connectors handle the LAN side. The console port is EIA/TIA-232 asynchronous serial, DCE, on RJ-45, and the auxiliary port is EIA/TIA-232 DTE on RJ-45 for remote administration with a modem. One external CompactFlash slot (slot 0) is fitted. The gateway runs Cisco IOS from flash memory.

Setup can be done from the system configuration dialog, the IOS command line or the setup command over the LAN. The gateway also takes Telnet, TFTP and SNMP management, and an HTTP-based configuration server. With the SNAP option it downloads its configuration files automatically.

The rear panel has an AC input and a DC input. AC input is 100 to 240 VAC, 1 A maximum, 50 to 60 Hz, 70 W maximum. DC input is a 12 V battery connection with a 60 W maximum draw. The two inputs are not redundant and are never used at the same time.

The chassis is 1.75 in. high, 17.5 in. wide and 13.5 in. deep (44.4 x 444.5 x 342.9 mm) and weighs up to 11 lb (4.106 kg). It mounts in a rack, on a wall or on a bench top. Another Cisco voice product on the site is the SPA122 analog telephone adapter, and more are in Cisco miscellaneous parts.