Nevion EDFA-B-C 17dBm - Manual (Page 7)

EDFA-B-C 17dBm Rev. B
nevion.com | 7
4
Configuration
4.1 Dip switch settings
The dip switches are also documented on the front of the EDFA
The following dip switches change the meaning of the other dip switches:
4.1.1 Common dip switches
Pos Name Function ON Function OFF Comment
1 G_P Constant Gain Constant Power Fundamental working mode for
EDFA.
7 A_M Autonomous
and/or
GYDA/DIP
control Manual RS232
control Set OFF to use the RS232 port in the
front of the EDFA to control
parameters like function (constant
power, gain or drive),
8 OVR Dip switches
active GYDA active When ON, only dip switches can
change configuration. GYDA can only
monitor. To control with GYDA, set to
OFF.
4.1.2 Constant power mode
In this mode, dip switch 1, 7 and 8 is set ON.
Pos Name Function ON Function OFF Comment
2 S_T SDI optimised Telco optimised Chooses between signal types
present on the fiber. For a low number
of SDI signals which might display
pathological signals (shifts in average
power), set dip ON. For many
channels with fast adaptation to
varying input levels, set dip OFF.
3 G3 Add 14dBm Add 10dBm These dip switches set the output
power, from a minimum of +10dBm to
a maximum of +17.5dBm (0.5dB
step).
4 G3 Add 2dBm Add 0dBm
5 G2 Add 1dBm Add 0dBm
6 G1 Add 0.5dBm Add 0dBm
4.1.3 Constant gain mode
In this mode, dip switch 1 is set OFF, while switches 7 and 8 are set ON.
Pos Name Function ON Function OFF Comment
2 S_T Not used Not used No effect in Constant Gain mode.
3 G3 Add 18dB Add 10dB These dip switches set the gain, from
a minimum of 10dB to a maximum of
25dB (1dB step).
4 G2 Add 4dB Add 0dB
5 G1 Add 2dB Add 0dB
6 G0 Add 1dB Add 0dB