Ext Line In Connector; Mic Pre Out Connector; Power-Up And Operational Check; Electrical Adjustments - RTS KP95 Installation Instructions Manual

panel jumpers J404-J406 must be set for the type of mi-
crophone (see "Internal Jumpers", page 12).

Table 7. EXT MIC IN Connector Pin-out

Pin
1
2
3
2.9.5

EXT LINE IN Connector

An external balanced audio source, such as program
sound, can be connected. The input is calibrated for a
nominal line level of +8dBu. This level can be changed if
required. See "Line Input to Speaker Level Adjustment",
page 16, for further information.

Table 5. EXT LINE IN Connector Pin-out

Pin Function
1 Shield
2 Line in "+"
3 Line in "-"
2.9.6

MIC PRE OUT Connector

This connector provides a balanced mic output signal of
+8 dBu at 60 ohms. As supplied, the MIC PRE OUT sig-
nal is activated only when any Talk key is on. If you want
this output to be on continuously, you must reset internal
jumper J403 (see "Internal Jumpers", page 12).

Table 6. MIC PRE OUT Connector Pin-out

Pin Function
1 Shield
2 Mic out "+"
3 Mic out "-"
2.10

POWER-UP AND OPERATIONAL CHECK

Plug in the AC power cords on the keypanel and expan-
sion panel, if used. Assign a talk key to a crosspoint using
the configuration software, and place calls to and from the
keypanel.
12 Installation Instructions, KP95-0 Keypanel
Function
Shield
Mic in "+"
Mic in "-"
The following symptoms may occur if the logical key-
panel number is incorrectly set: 1) when a key is pressed
to talk, the destination may not hear the audio, or may
hear audio from a different intercom station, or 2) there
may be no audio received when a call is placed to the key-
panel. If these symptoms occur, recheck the logical key-
panel number DIP switches.
Important! Always reset the keypanel after changing
the DIP switch settings. Do this by briefly removing
power to the keypanel.
3

ELECTRICAL ADJUSTMENTS

3.1

INTERNAL JUMPERS

There are several internal jumpers which modify keypanel
operation. The jumpers are set for the following default
operations:
J201: The EXT LINE IN signal is muted when any Talk
key is pressed. May be optionally set for no mute.
J202: The speaker (or headphones) are muted by 15 dB
when any Talk key is pressed. May be optionally set to
full mute.
J203: Continuous sidetone. When using a headset, the
keypanel operators own voice will be heard at all times in
the headphones. May be optionally set for sidetone only
during talk.
J401: The microphone activates when any Talk key is
pressed. May be optionally set for continuous micro-
phone.
J402: Normal/test switch set for normal operation.
J403: The MIC PRE OUT signal is activated only when
any Talk key is pressed. May be optionally set for con-
tinuous operation.
J404-J406: The keypanel is configured for operation with
the standard dynamic, -70dB, 150-ohm gooseneck micro-
phone. May be optionally configured for other micro-
phone types.
To reset any of the jumpers, remove the top cover from
the keypanel. Locations of the jumpers are shown in Fig-
ure 7. The following paragraphs describe the alternative
settings for the jumpers.