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19541P-42 (03-12)
Table 2: LED Status Indications
LED Color
Blink Rate
Status
Red
Solid
Initializing/power up
Red
Once
Connection Dropped
Red
Once
Connection Established
Red
Any
Low battery (approx. 1 hr remaining)
Orange
Slow
Idle/Disconnected
Orange
Fast
Link/Connection in Progress
Orange
Solid
PTT asserted
Green
Slow
Connected (pattern indicates
number of belt stations connected)
O
O
p
p
e
e
r
r
a
a
t
t
i
i
o
o
n
n
Communication
All connected belt stations will be able to communicate with each other through the U9921-GUV
while in range (and per the VOX settings on a VOX belt station.) Additionally, all belt station
users will have communication over the intercom. If the intercom is so equipped, pressing the
PTT button on a VOX belt station will allow the user to transmit over the system’s two-way radio.
Pressing the PTT overrides the VOX setting on a VOX belt station. Multiple VOX belt station users
may PTT and thus speak over the two-way radio simultaneously. For more information consult
the user manual for the belt station.
Tip:
Wireless users who are not pressing PTT while another wireless user is pressing PTT
will not be heard on the wired intercom while the PTT remains pressed.
Intercom Level Adjustment
Audio levels can vary between intercoms, mainly due to the system level setting on the wired
intercom. To compensate for this, the U9921-GUV has the ability to adjust its receive level from
the intercom using the
Vol
keys (see
Figure 1
). Pressing these keys will increase or decrease the
audio level coming from the wired intercom into the gateway. Perform this adjustment to obtain
optimum performance.
Receive Level Adjustment Procedure
1.
Connect at least one belt station to the U9921-GUV gateway and ensure sidetone is
present (see belt station User Manual).
2.
Begin speaking and slowly and repeatedly press the
Volume Up
key on the U9921-
GUV gateway until you hear an echo of your own voice.
3.
Continue speaking and press the
Volume Down
key until the echo stops.
4.
You may wish to verify communication with someone hard-wired to the intercom.
