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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
Data Modules
21-26The 8400B Plus Data Module
21
When power is first applied to the 8400B Plus data module, the unit performs a
self-test to verify that it is in working order. During the self-test, both lights will
remain ON. When the self-test is complete, the green light turns OFF
■ If self-test passed, the red light will remain ON. This indicates that your
8400B Plus data module is installed and ready for data communications
operation.
■ If self-test failed, the red light will FLASH (A Flash is a repeated pattern of
500 ms ON and 500 ms OFF.) three times, and then remain ON.
Other light indications are:
■ Idle in Normal Mode — The green light is OFF; the red light is ON — This
is the unit’s normal mode if no active data call exists.
■ Incoming Call — The green light FLASHES; the red light is ON — This
indicates an incoming call.
■ Active Data Call — Both the green and red lights are ON — This indicates
an active data call.
■ Test Modes (Other Than Self-Test) — Both green and red lights
FLASH — This indication shows that the data module is in test mode.
■ Memory Error Mode — The green light is OFF; the red light FLASHES —
This indicates that the unit is defective. Call the Lucent Technologies
Technical Service Center at 1 800 242-2121.
■ Switch Link Down — The green light WINKS (A Wink is a repeating
pattern of 750 ms ON and 250 ms OFF.); the red light emits an INVERTED
WINK (An Inverted Wink is a repeating pattern of 250 ms ON and 750 ms
OFF) — This indication shows that the unit is unable to communicate with
the PBX. Restore the connection between the 8400B Plus and the PBX
wall jack.
■ Phone Link Down — The green light emits an INVERTED WINK; the red
light WINKS — This indicates that the unit is unable to communicate with
the telephone. Restore the connection between the 8400B Plus and the
telephone.
Other Physical Features
Jacks
The 8400B Plus data module is equipped with the following jacks:
■ PHONE — This connector accepts one end of the D8W telephone line cord
used to connect a 2-wire voice terminal to the 8400B Plus data module.
■ LINE/POWER — This connector accepts one end of the D8W telephone
cord that connects the 8400B Plus data module and either:
— a PBX wall jack already powered by a closet supply, or
— a power supply, which is connected to the PBX wall jack.