TABLE 1: DEFINITIONS OF THE HT503 CONNECTORS
| 12VDC, 0.5A |
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| Power adapter connection |
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| LAN Port |
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| Connect the LAN port with an Ethernet cable to your PC. |
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| WAN Port |
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| Connect the WAN port to the internal LAN network or router. |
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| PHONE |
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| FXS port to be connected to analog phones / fax machines. |
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| LINE |
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| FXO port should be connected to the PSTN line |
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TABLE 2: HT503 LED DEFINITIONS |
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| LEDs |
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| POWER LED |
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| Indicates Power. Remains ON when power is connected |
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| WAN LED |
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| Indicates LAN (or WAN) port activity |
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| LAN LED |
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| Indicates PC (or LAN) port activity |
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| PHONE/ LINE LED |
| Indicates the status of the FXS and FXO ports on the back |
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| Busy – ON (Solid Green) Available – OFF |
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| Slow blinking FXS LEDs indicates voicemail for that port. |
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Note: Slow blinking of POWER, WAN, and LAN LEDs together indicate firmware upgrade/provisioning state.
FIGURE 2: INTERCONNECTION DIAGRAM OF THE HT503
Internet ADSL/Cable
Modem Ethernet
WAN
FXOFXS
PSTN
Cloud
LAN
Analog Phone
Cordless
Fax
Grandstream Networks, Inc. | HT503 User Manual | Page 6 of 38 |
| Firmware 1.0.4.2 | Last Updated: 06/2011 |
