Valcom V-9921HF Manual

HANDSFREE TALKBACK UNIT
INTRODUCTION
The V-9921HF handsfree talkback unit is a
self-contained talkback amplifier and VOX circuit for
use in single zone two-way page applications.
The V-9921HF handsfree talkback unit has received
an FCC type KX registration; designed to be used
with FCC registered Key Telephone Systems. In
accordance with FCC rules with applicable tariffs,
this paging unit may only be installed with the
authorization of the host system. Installations may be
made by Valcom, Inc., an authorized agent of the
same, equipment manufacturers, telephone
companies, registered telephone refurbishers, and
those qualified for installation of FCC registered
systems under FCC Rules Section 68.215. The FCC
Registration Number, BAFUSA-69358-KX-N, will
be listed in the affidavits filed with the telephone
company and also be recorded in the system log kept
by installation and maintenance personnel. The local
telephone company is to be notified when this paging
unit is installed.
SPECIFICATIONS
Features

Volume control for phone to speaker audio path

Volume control for speaker to phone audio path

Speaker cancel circuit (1A2 applications)

ICM, battery or ground start inputs (latched)

Alert tone generator

Battery feed circuit for trunk level access

Switched lamp and PC lead output when
internal battery feed is used

15 second repeated alert tone
Applications

1A2 key system line key positions

Bell/buzzer intercoms

Loop start PABX trunk positions

Bi-directional page ports with page enable
contact closure

Horizon* Systems
V-9921HF
Dimensions/Weight

7.13"H x 5.75"W x 2.13"D
(18.11cm H x 14.61cm W x 5.41cm D)

2.5 lbs. (1.14 kg)
Capacity

Use one V-9921HF for each zone

The V-9921HF will drive up to two 45 ohm
two-way speakers (talkback page) and 40
one-way amplified speakers (one-way page
only)

The V-9921HF may also be connected to the
input of a 70 volt line high power amplifier
(one-way page only)

A V-1094A may be used to increase the number
of one-way amplified speakers
Nominal Specifications
Output impedance
Output power
ICM start
Battery start
Ground start
Switching sensitivity
1
VSP-V-9921HF
Issue 6
45 Ohms
18VAC or 105 VAC momentary,
-24VDC momentary or cont.
-24VDC momentary
10 ms. min.
947921
1 watt
-26dB