Chapter 5 Terminal Operation IP6702A TDMoEthernet
Loop Telecommunication International, Inc.
67
Table 5-21 Port Setup
Field
Setting Options
Default Setting
CODE
HDB3, AMI
HDB3
INTF
75 OHM, 120OHM
120 OHM
AIS
ON, OFF
ON
RAI
ON, OFF
OFF
IDLE CODE
0 ~ 9, A ~ F
D5
OOS
BUSY, IDLE
BUSY
Table 5-22 Defining Parameters in Port Setup
Parameters
Definition
CODE
For the E1 line interface, either AMI (Alternate Mark Inverting) or HDB3
(high density bipolar of length 3) line code format can be chosen, be sure
this setting matches that of the network.
INTF
E1 interface only display 120 Ohm twisted pair, 75 Ohm BNC.
AIS
AIS, alarm indication signal, notify the far end that a loopback and
diagnostic test are in progression. Thus customer signals are blocked. The
AIS can be sent two ways. In the framed mode, all time slots will have all
ones sent but the framing pattern will be preserved. In the unframed mode,
all ones are sent for all time slots.
RAI
Remote Alarm Indication, transmits a return signal back out to indicate
loss of signal and loss of frame sync at the receiving side if the port. This
action can be turned ON or OFF.
IDLE CODE
Any DS0/DS1 time slot, which is not assigned an idle time slot. An idle
code is transmitted on idle DS0/DS1 time slots. The idle time slot may be
programmed to any bit pattern from 0x00 to 0Xff.
OOS
Out Of Service Signaling, when failure of the facility occurs, if there are
calls in progress, the billing system should be notified to stop charging the
customer at the time of facility failure.
5.16.1.2.
Port Loopback Test
The full menu path for Port Loopback Test is as follows:
O
> Logon
P
> Choose a Port
L
> Port Loopback Test
The screen of
Port Loopback Test will show as below.
Use arrow keys to move the cursor and enter key to start the loopback.
E1 Port A === Port Loopback Test === 14:18:57 01/18/2016
ARROW KEYS : CURSOR MOVE , ENTER KEY : ITEM SELECT
- NEAR -END LOOPBACK : *OFF LOCAL LLB
<< Press ESC key to return to previous menu or save the setup>>
