User manual

Chapter 3. Operation
61200314L1-1 Dual T1/PRI Module User Manual 3-9
P
RT
Read security: 5
Displays the port number.
L
OC
LB Write security: 4; Read security: 5
Causes loopback on near-end (local) port (see Figure 3-4). The following
options are available:
Figure 3-4. Network Loopback Test
R
EMOTE
LB Write security: 4; Read security: 5
SendsloopbackcodetoRemoteCSU.Thefollowingoptionsareavailable:
P
ATTERN
Write security: 4; Read security: 5
Test pattern to be transmitted out the port. The following options are avail-
able:
Line Metallic loopback
Payld Payload loopback - framing and clocking are regenerated
Dual T1/PRI
DS1
NI CSU
Payload Loopback
Line Loopback
ANSI FDL Line Requires ESF mode.
ANSI FDL Pyld Requires ESF mode.
AT&T Inband line Works in ESF and D4 mode.
All ones Framed ones
All zeros Framed zeros
QRSS Pseudo-random pattern with suppression of excess zeros