User Guide

WAN Configuration
2-6 Local Management User’s Guide
T1 Loopback (Selectable) — Network Loopback is a testing procedure that segments the line
and allows the user to isolate faults. The selections for this field are None, Line-Loop, and
Payload-Loop. In Line-Loop the entire T-1 line is looped back, including the framing bits, CRC,
and the facility data link. This happens before the framer. In Payload-Loop, only the 24 time slots
are looped back, which happens behind the framer, and does not include the framing bits, CRC,
and facility data link. The HSIM or CyberSWITCH must be in Loop-Timing mode to use this
option. The default setting is None.
Timeslot Configuration Table — The Timeslot Configuration Table (WPIM-T1 for the
HSIM-W84) lets you configure the way in which the T1 time slots are used. The Configuration
Table contains 24 time slots. You must assign each time slot an Interface Number. Time slots not
used will be assigned a value of 000. If you lease an entire T1 line you can use all 24 time slots (the
full T1 bandwidth). In the case of the HSIM-W84, available interfaces for T1-1 are 002 through
025, T1-2 are 026 through 049, T1-3 are 050 through 073, and T1-4 are 074 through 097.
DDS Line Configuration Fields
The configuration fields displayed on the WAN Physical Configuration screen shown in
Figure 2-2 are specific to the DDS mode of the HSIM or CyberSWITCH.
Figure 2-2 WAN Physical Configuration Screen for DDS Service
SAVE WAN INT CONFIG RETURN
Type: DDS
WPIM #: 1
MgrType: [None]
Max VCs: 000
Next IF: N/A
WAN PHYSICAL CONFIGURATION
DDS Line Mode:
DDS Tx Clock Source:
DDS Loop-Back:
WPIM 1 Line Configuration
2750_01
<host name> Local Management Flash Image Version: 02.xx.xx
[WPIM 1]
WPIM 1
[DDS-PRI]
[Loop-Timing]
[NONE]
DDS In-Speed:
DDS Out-Speed:
56000
56000
REMOTE SETUP