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C900TTL-E | Installation Guide | 3.0
3.2.2
System LED
The System LED (Item 6 in Figure 10 on page 13) indicates the status of the D6600 and the C900TTL-E.
Table 5: System LED Functions
Dialer LED
Color
State
Off
Off
Green
Solid
Blinking (5 Hz)
Red
Solid
Blinking (5 Hz)
Blinking
(Repeating Code)
Red or green
Alternating
(5 Hz)
*
If the dialer sends a valid message, the LED returns to a blinking green status. If the dialer hangs up, an intercept error is generated. The
alternating LED also occurs when the line is seized, but no transaction is occurring (for example, the C900TTL-E is waiting for the dialer to
return on-hook). This situation occurs when the C900TTL-E returns to Intercept Mode, or while the dialer has seized the line.
3.2.3
Ethernet/Serial Status LEDs
The C900TTL-E has four Ethernet/Serial status LEDs (Items 1, 2, 3, and 4 in Figure 10 on page 13). These LEDs
flash until the C900TTL-E connects to the Ethernet network. If the LEDs continue to flash, the C900TTL-E is
having trouble connecting to the Ethernet network. The Ethernet Network Link LED should be on and remain
steady when a connection is established with the Ethernet network. Refer to Table 6.
Table 6: Ethernet Status LED Functions
LED
Description
1
Serial Port (Channel) 1
Status
2
Serial Port (Channel) 2
Status
3
Diagnostic
4
Network Link Status
* Non-fatal error
The software in the network interface module must be version 4.5 or later. To verify the software version,
initiate a Telnet session. Refer to Section 4.6 Enabling Dynamic Host Configuration Protocol (DHCP)
on page 23.
14
C900TTL-E Setup
Function
Power was lost
C900TTL-E failed or has no power.
The D6600 is responding normally.
C900TTL-E failed or has no power.
The D6600 is not responding.
One blink
ROM checksum error
Two blinks
RAM test error
The dialer is off-hook, but the last message was rejected because of a bad
checksum or other logical error.*
Function
NIM software version
On to indicate Serial Port (Channel) 1 is idle.
5.27 or 5.5c:
Off to indicate Serial Port (Channel) 1 is idle.
NIM software version
5.1b5 or 5.1b6:
Not Used.
Disregard status.
Glows steadily or flashes red in combination with the Channel 1 LED to
indicate diagnostics and error detection.
LED 3 solid red, LED 1 (Channel 1) flashing red:
1x
EPROM checksum error
2x
RAM error
3x
Network controller error
LED 3 flashing red, LED 1 (Channel 1) flashing red:
4x
Fault network connection*
On to indicate the network port is connected to the network.
Bosch Security Systems, Inc. | 5/07 | 4998122718-02
4x
EEPROM checksum error
5x
Duplicated IP address on the network*
6x
Software does not match hardware
5x
No DHCP response received*
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