ETS SMA1-LPEA-C5 Instructions

The SMA1-LPEA-C5 is a single channel, two way audio Interface box designed to be used with ETS speaker /
microphones and Power Over Ethernet I/P cameras. It contains a 2.5Watt speaker power amplifier to drive a 70v speaker
and and an ETS microphone interface. The SMA1-LPEA-C5 also features installer friendly termination of the cable runs
and a standard RCA or 3.5mm audio output connectors. The SMA1-LPEA-C5 can be connected to a "microphone" or
"line" level input, and "line level" output of a POE I/P camera.

SMA1-LPEA-C5 location and power

The SMA1-LPEA-C5 interface box is designed to be located any place along the I/P camera CAT5 cable run. It must be
located in between the I/P camera and the router or switcher as shown in figure 1.
NOTES-
1. The I/P camera MUST be connected and operating before the SMA1-LPEA-C5's power indicator will illuminate.
2. The SMA1-LPEA-C5 will not work with standard I/P cameras.

CAT5 Speaker / Microphone Cable Run

Run a standard CAT5 cable to the ETS Speaker / microphone (up to 1000' maximum) and make terminations on BOTH
ends as follows on the RJ45 jack:
Pair 1 1
2
Pair 2 3
4
Pair 3 5
6
Pair 4 7
8
Adjusting the microphone "gain" and SMA1-LPEA-C5 "level" controls (audio output)
If the SMA1-LPEA-C5 will be plugged into a "microphone level" input of an I/P camera, set the microphone gain slightly
clockwise (or 1/8 of a full turn) from full counter-clockwise. Then use the "level control" on the SMA1-LPEA-C5 to set a
volume that produces an acceptable audio level at the head end.
If the will SMA1-LPEA-C5 be used with a "line level" input, turn the gain control of the SM1 to 3/4 full clockwise and adjust
the level control on the SMA1-LPEA-C5 to produce the clearest audio level at the head end.

Adjusting the speaker volume

Adjust the audio input level for an acceptable volume level on the connected 70v speaker / microphone.
SMA1-LPEA-C5 Mode switch: The SMA1-LPEA-C5 supports Both Modes A and B of IEEE802.3af POE. The SMA1-
LPEA-C5 is pre-configured for the most common use of the "end point" POE IEEE802.3af standard (mode A). If the power
LED does not illuminate in this position, try the mode B position (mid span).

SMA1-LPEA-C5 Interface Instructions

CALL SW
CALL SW
SPEAKER (70V) +
SPEAKER (70V) –
MICROPHONE +
MICROPHONE –
+12V (MICROPHONE)
COM (MICROPHONE)