User's Manual

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GXW450X User Manual
Version 1.0.0.6
used as the master, the gateway system clock will synchronize to it.
• Master
: The port will never be used as a source of timing. This is
appropriate when you know far end should always be a slave to you.
• Slave
: The equipment at the far end of the E1/T1/J1 link is the
preferred source of the master clock.
Signaling
Chooses the signaling protocol that will be used on the digital port.
PRI: when one end is set to NET, the other end should be set to CPE
Data channel
Chooses the Data Channel for control.
LBO
The line build-
out (LBO) is the distance between the operators and the
gateway. Please use the default value 0dB unless the distance is long.
Coding
T1:"AMI" or "B8ZS"
E1:"AMI" or "HDB3"
RX Gain
Configure the RX gain for the receiving channel of digital port. The valid
range is from -24dB to +12dB.
TX Gain
Configure the TX Gain for the transmitting channel of digital port. The valid
range is -24dB to +12dB.
Codec
Select alaw or ulaw. If set to default, alaw will be used for E1.
Play Local RBT
This configured whether to play the ringback tone from local GXW450X or
not. If enabled, the local GXW450X will play ringback
tone to the caller.
Otherwise, the caller will listen to the tone from peer device. The default
setting is disabled.
Framing
If span type is E1, the signaling configure as MFC/R2, then framing must
configure as "cas"; If span type is E1, the signaling configure as PRI or
SS7, then framing must configure as "ccs"; If span type is T1, and the
signaling configure as PRI or SS7, then framing can configure as "esf" or
"d4"; If span type is J1, and the signaling configure as PRI or SS7, then
framing can configure as "esf" or "d4".
CRC Validation
For E1, select whether to use CRC4 or None.
Advanced Settings
Switch Type
Select switch type.
• EuroISDN: EuroISDN (common in Europe)