HSM11-C5 Speaker / Microphone Instructions
The HSM11-C5 is a combination 70V speaker and
pre-amplified
microphone designed to be used in outdoor
applications. The HSM11-C5 is designed to directly interface ONLY with the ETS SMA1-xx-C5 for connection to DVRs,
I/P cameras, etc.
HSM11-C5 is for use in half duplex audio systems only. Audio whine or “feedback” will be result if both
speaker and microphone are active at the same time.
HSM11-C5 Microphone / Speaker Placement.
Locate the HSM11-C5 speaker
/
microphone near the area of interest in the space to be monitored. If a large area is to be
monitored, locate the HSM11-C5 in the middle of the space if possible. Avoid mounting the speaker / microphone near air
conditioning vents, light fixtures or electrical equipment. The HSM11-C5
should be placed as close to the subject(s) as
possible. 5 to 10 feet is ideal. The HSM11-C5 is still useable in the15 to 50+ feet range in public address applications but
is dependent on the level of background noise in the area. Experimentation in the environment will determine what
distances work best.
Cable Run
Run a single CAT5 cable from the HSM11-C5 Speaker / Microphone and the SMAx-LP interface box. Keep the cable run
distance at or below 1000 feet and away from AC power sources, light fixtures and electrical equipment. Wire the RJ45
cable connectors in the following order:
Pair 1
1
CALL SW
2
CALL SW
Pair 2
3
SPEAKER (70V) +
4
SPEAKER (70V) –
Pair 3
5
MICR
6
MICROPHONE –
Pair 4
7
+12V (MICROPHONE)
8
COM (MICROPHONE)
Call Switch Connections
The HSM11-C5 features a call switch input. This pair of wires is isolated from all other circuitry and can be used for a call
switch, door contact, door release relay, etc. Terminal block connections are “broken out” on the HSM11-C5 and any ETS
SMAX-LP interface ordered with the –C5 option.
Adjusting the microphone “gain” and SMAx-LPxx-C5 “level” controls (audio output)
Remove the windscreen and locate the gain control as shown in the figure on the back of this page. The gain is set to
mid-point at the factory. If the signal from the SM1-WBE is too loud, rotate this control counter clock-wise. If the signal
from the SM1-WBE is too low, adjust this control Clockwise. Experiment with different settings until the desired audio level
is achieved.
See figure below.
If the SMAx-LPxx-C5 will be plugged into a “microphone level” input of an I/P camera, set the microphone gain of the
HSM11-C5 slightly clockwise (or 1/8 of a full turn) from full counter-clockwise. Then use the “level control” on the
SMAx-LPxx-C5 to set a volume that produces an acceptable audio level at the head end.
If the SMAx-LPxx-C5 will be used with a “line level” input, turn the gain control of the HSM11-C5 to 3/4 full clockwise and
adjust the level control on the SMAx-LPxx-C5 to produce the clearest audio level at the head end.
HSM11-C5 Speaker volume
The volume of the HSM11-C5 speaker can be changed by changing the position of the switch on the back of the unit.
Rotate the switch (2 clicks short of full clock-wise) to the 32W position for the loudest power setting and (counter clock-
wise) 2W position for the lowest power setting.
