ADC Soneplex Broadband System Operation And Maintenance Manual page 158

FIELD UNIT TYPE
DS3 MUX (HIGH SPEED)
Local DS3 MUX
HDSL SYSTEMS (LOW SPEED)
Local HLXC
Local HLXC
Remote HLXR
HDSL SYSTEM WITH ONE HRX (LOW SPEED)
Repeater HRX1
HDSL SYSTEM WITH TWO HRXS (LOW SPEED)
Repeater 1 HRX1
Repeater 2 HRX2
FIBER OPTIC SYSTEM WITH ODS2 AND QLX MODULES (LOW SPEED)
Local ODS2
Remote QLX
Local ODS2
T1 SYSTEM WITH DLX MODULE (LOW SPEED)
Local DLX
Local DLX
T1 SYSTEM WITH RLX MODULE (LOW SPEED)
Local RLX
Local RLX
* The SEND LPBK option is only available in the Soneplex Broadband System at the Local command toggle
field on the Loopback Status/Commands screen when the DS1 Loopback Mode field on the DS3 MUX
Configuration screen is configured as C-Bit parity.
Note: When a customer (CPE) loopback is in progress, the network output signal is returned to the network as a
keep-alive for network equipment. However, when a network loopback is in progress, an unframed all 1s signal
(AIS) is transmitted to the customer interface.
ADCP-61-471 • Issue 4 • June 2000 • Section 2: Operation and Maintenance
Table 541-1. Loopback Selection Field Options
LOOPBACK TYPE
Network Loopback at the DS3 MUX
Customer Loopback at the HLXC
Network Loopback at the HLXC
Send Loopback at the HLXC Module
Customer Loopback at the HLXR
Network Loopback at the HLXR
Customer Loopback at the HRX
Network Loopback at the HRX
Customer Loopback at the HRX1
Network Loopback at the HRX1
Customer Loopback at the HRX2
Network Loopback at the HRX2
Customer Loopback at the ODS2 Module
Network Loopback at the Remote QLX
Send Loopback at the ODS2 Module
Customer Loopback at the DLX
Network Loopback at the DLX
Send Loopback at the DLX Module
Customer Loopback at the RLX
Network Loopback at the RLX
Send Loopback at the RLX Module
DLP-541
Page 6 of 16
OPTION SHOWN IN...
ACT NET Figure 541-5
ACT CUST Figure 541-6a
ACT NET Figure 541-6b
SEND LPBK* Figure 541-6c
ACT CUST Figure 541-7a
ACT NET Figure 541-7b
ACT CUST Figure 541-8a
ACT NET Figure 541-8b
ACT CUST Figure 541-9a
ACT NET Figure 541-9b
ACT CUST not shown
ACT NET not shown
ACT CUST Figure 541-10a
ACT NET Figure 541-10b
SEND LPBK* Figure 541-10c
ACT CUST Figure 541-11a
ACT NET Figure 541-11b
SEND LPBK* Figure 541-11c
ACT CUST Figure 541-12a
ACT NET Figure 541-12b
SEND LPBK* Figure 541-12c
© 2000, ADC Telecommunications, Inc.
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