Alcatel-Lucent omniacces-voip gateway 사용자 설명서
Voice Switching Daughtercard — Digital
Page 2-9
VSD Cross-Over Toggle Switch
The Cross-Over toggle switch for digital voice daughtercards (VSDs only) can be used to
correct communication link errors between a daughtercard in the switch and a PBX or keyset
due to the transmit (TX) and receive (RX) pins of the cable connecting the VoIP daughter-
card and the digital telephony device (PBX or other voice device). This will show up as the
link LED not turning green (see VSD Front Panel on page 2-7).
correct communication link errors between a daughtercard in the switch and a PBX or keyset
due to the transmit (TX) and receive (RX) pins of the cable connecting the VoIP daughter-
card and the digital telephony device (PBX or other voice device). This will show up as the
link LED not turning green (see VSD Front Panel on page 2-7).
If a communication link error occurs between the switch and the PBX or Key Set as such, the
blue Cross-Over toggle switch, as shown here on the top side of the board, can be flipped to
a Cross-Over ON or OFF position after shutting down the VoIP switch and removing the
affected daughtercard. This will swap the transmit and receive connections for the designated
port. The default toggle position is to the left or OFF position.
blue Cross-Over toggle switch, as shown here on the top side of the board, can be flipped to
a Cross-Over ON or OFF position after shutting down the VoIP switch and removing the
affected daughtercard. This will swap the transmit and receive connections for the designated
port. The default toggle position is to the left or OFF position.
Once the toggle switch has been flipped, the card can be reinstalled, and the ports on the
voice daughtercard reconnected to the PBX or other voice device using either a Straight-
Through or Cross-Over cable (Straight-Through recommended).
voice daughtercard reconnected to the PBX or other voice device using either a Straight-
Through or Cross-Over cable (Straight-Through recommended).
♦ Notes ♦
An amber cellophane tape may need to be peeled off
the top of the Cross-Over toggle switch before the
toggle switch can be flipped. When the tape is present
it indicates the toggle switch is set to factory default.
the top of the Cross-Over toggle switch before the
toggle switch can be flipped. When the tape is present
it indicates the toggle switch is set to factory default.
The physical port always has 8 pins, but changes func-
tionally depending on the cable in use. For more infor-
mation on the RJ-45 jacks, see VSD RJ-45 Specifications
on page 2-11.
tionally depending on the cable in use. For more infor-
mation on the RJ-45 jacks, see VSD RJ-45 Specifications
on page 2-11.
Cross-Over Switches — Swapping Port Transmit/Receive Connections
Switch
Bus
Digital
DSP
DSP
DSP
DSP
DSP
DSP
DSP
DSP
DSP
DSP
DSP
DSP
Voice Port
Digital
Voice Port
Top View
A
B
Cross-Over
Switches
(T1)
D
I
M
M
M
D
I
M
M
M
D
I
M
M
M
D
I
M
M
M
Straight-Through
Setting
to Left
to Left
Default