ESI IP 200 Installation Manual page 39

IP Series Installation Manual
Function 2122: T1 frame format and line coding
Use the scroll keys to select the frame format and line coding — either ESF/B8ZS, SF/AMI, ESF/AMI
or SF/B8ZS. Press # to confirm. Default is ESF/B8ZS.
P-CARD 3
FF/LC ESF/B8ZS >
If a second T1 port card is installed, the system will alternate to the next port card. Use the scroll
keys to select the frame format and line coding. Press # to confirm.
Function 2123: Line build-out
This function allows you to adjust the line build-out of the T1 port card. The level programmed
depends on the application (CSU or DSX-1) indicated in the following table.
Level
1
2
3
4
5
6
7
8
Use the scroll keys to select the line build-out and press # to confirm. Default is 1.
If a second T1 port card is installed, the system will alternate to the next port card. Select the line
build out with the scroll key. Press # to confirm.
Function 2124: CSU emulation
Use the scroll keys to toggle between enabled and disabled. Default: Off. If there is no external
CSU, the CSU Emulation setting should be set to On but the remaining options should be left at the
default setting of Off. When CSU emulation is enabled, the following test options will be available
and should be used only at the request of the carrier.
Test option* Description
ATT PRF Loopback test per AT&T spec 62411 for performance assessments,
sent to the carrier on ESF trunks only.
ANSI PRM Loopback test per ANSI spec T1.403 for performance assessments,
sent to the carrier on ESF trunks only.
PLB (Payload loopback.) Accepts signal from the carrier at the chip level,
puts it through the framer (de-frames and re-frames signal with data
staying the same) and sends it back to the carrier. Used to determine
whether the chip itself is functioning correctly.
LLB (Line loopback.) Sends the signal back right at the point it enters the
chip before it enters the framer. Helps determine whether the line
itself is good.
NET LLB (Network loopback.) Lets the carrier put the DLC's CSU into any of the
loopback modes.
* Test options available only when CSU emulation is set to On.
Warning: The default setting is Off for those systems using an external CSU. If there is no
external CSU, the CSU Emulation setting should be set to On but the remaining
options should be left at the default of Off. Use these other settings ONLY at the
request of your carrier or the phone system manufacturer for testing purposes.
T1
CSU line build-out
0 dB
N/A
N/A
N/A
N/A
-7.5 dB
-15 dB
-22.5 dB
Function 2: CO lines
DSX-1 line build-out
0 to 133 feet
133 to 266 feet
266 to 399 feet
399 to 533 feet
533 to 655 feet
N/A
N/A
N/A
Options
On/Off
On/Off
On/Off
On/Off
On/Off
Default
Off
Off
Off
Off
Off
E.7