User Manual

ADCP-75-192 • Issue 1 • December 2005 • Section 2: Description
Page 2-4
 2005, ADC Telecommunications, Inc.
The main purpose of the Module/Port status indicators shown in Figure 2-3 is to provide the
user instant feedback on the success or failure of a new connection. It also provides path status
to aid in troubleshooting missing or degraded connections. The references for the back
connectors of the Digital Chassis are shown in the Table 2-2.
(1) 7/8 LEDS (3-8)
(3) 3/4 LEDS (3-8)
(4) 1/2 LEDS (3-8)
(2) 5/6 LEDS (3-8)
(5) 1 HZ CLOCK LEDS
(6) I2C A-D LEDS
(7) 9/10 LEDs (3-8)
Figure 2-3. Digital Chassis – Rear Indicators
Table 2-2. Digital Chassis References
REF
No.
USER INTERFACE
DESIGNATION
DEVICE FUNCTIONAL DESCRIPTION
1 7/8 DIF LEDs (3-8) 12 tri-color LEDs
(r/o/g)
SIF/RSC DIF output/input 7 & 8.
Green=good, orange=marginal,
blinking=clocking issue, red=bad or
missing. Maps to Slots 3-8.
2 5/6 DIF LEDs (3-8) 12 tri-color LEDs
(r/o/g)
SIF/RSC DIF output/input 5 & 6.
Green=good, orange=marginal,
blinking=clocking issue, red=bad or
missing. Maps to Slots 3-8.
3 3/4 DIF LEDs (3-8) 12 tri-color LEDs
(r/o/g)
SIF/RSC DIF input 3 & 4. Green=good,
orange=marginal, blinking=clocking issue,
red=bad or missing. Maps to Slots 3-8.
4 1/2 DIF LEDs (3-8) 12 tri-color LEDs
(r/o/g)
SIF/RSC DIF input 1 & 2. Green=good,
orange=marginal, blinking=clocking issue,
red=bad or missing. Maps to Slots 3-8.
5 1HZ/CLOCK LEDs Two green LED 1 Hz blinks once per second. Clock is solid
green when reference is present into chassis
6 I2C A-D LEDs Four green LEDs Indicates communications activity over the
four I2C busses (A-D)
7 9/10 DIF LEDs (3-8) 12 tri-color LEDs
(r/o/g)
RSC DIF output. Green=good,
orange=marginal, blinking=clocking issue,
red=bad or missing. Maps to Slots 3-8.