Neptune 13458-000, Руководство по установке и обслуживанию

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Checking Cellular Modem Connectivity
There are LED lights located on the digital and RF board that
should be lit as the unit is powered on. See Figure 93 – page 72.
LED lights on the Ethernet connector (EF Ethernet J1003) should
be flashing or steadily lit indicating that the Ethernet connection
is good.
Complete the following steps to check for modem connectivity.
Figure 94 – Modem Front View
1. If any of the lights are not illuminated, check the
Ethernet connection to the board.
The LED lights on the cellular modem should be
illuminated. See Figure 94, Figure 95, and Table 11 on
the next page. At power up, all LEDs display red, then
amber, and then green. When the boot sequence is
complete, the RSSI indicator is steadily green and the
service (SVC) indicator is flashing green.
RSSI flashing green and SCV amber - indicates reduced
RSSI and/or 2G cell coverage, and is sufficient for normal
operation.
Figure 95 – Modem Back View
2. If the lights are off, this indicates that there is a power
problem with the modem or the power source. See
"Verifying Cellular Modem Power" on the next page.
3. Verify that the cellular modem has a SIM card installed
(if applicable) and has been configured. See "Configuring
the Cellular Modem" on page 108 in Appendix D.
Certain cellular services, such as CDMA, do not require a
SIM card to operate. However, some cellular services do
require a SIM card, such as Global System for Mobile
Communication (GSM), Enhanced Data for GSM Evolution
(EDGE) and General Packet Radio Service (GPRS). Verify
with the cellular service provider.
R900 Gateway Installation and Maintenance Guide 73
Chapter 6: Troubleshooting