Tadiran Telecom Emerald ICE Quick Installation Manual page 18

Section 2-System Design
The CCB has two Option Strap jumpers one for database start-up (J7) and one for Music Channel
One source (internal/external) selection (JP81).
• JP7 Cold Start/Normal : JP7 is used to force load database default factory settings. This
jumper will normally never require operation after the initial power up sequence is com-
pleted. However should the need arise to return the site database to the factory settings
this jumper is used to accomplish the task.
• JP81 Internal/External: J81 is used to select the Music Channel 1 source. The Emerald
ICE provides a synthesized music source for music on hold in applications where no
music source is available. The synthesized tune is repeated. JP7 is in the "External" posi-
tion when it ships from the factory.
The CCB is equipped with a Heart-beat LED that indicates processing activity on the PCB. (The
610+2 peripheral processor is operating when the Heartbeat LED is flashing.) The KSU1 operation
LED (located next to the power switch) is tied to the CCB Heartbeat LED. Therefore, when the
LED next to the power switch is flashing, the CCB is active.
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