Applications - General DataComm 551 Operating And Installation Instructions

TABLE 1-1. HOUSINGS FOR DataComm 551 AND RELATED PRODUCTS
Product
DataComm 551 CSU
DataComm 552 DSU
PMC-100 Performance Monitor Card
DataComm 596 Modem

APPLICATIONS

INTRODUCTION
DE-7
√
√
• DS1 Local Test (LT)
• DS1 Local Test with Self-Test
• DS1 Network Interface Loopback
• DS1 Network Interface Loopback with Self-Test
• DS1 Remote Test (RT)
• DS1 Remote Test with Self-Test
• DS1 Test Loop
It also offers the following channel-level (DS0) diagnostics:
• DS0 Circuit Delay Measurement Test
• DS0 End-to-End Self-Test
• DS0 Remote Test
• DS0 Remote Test with Self-Test
The DataComm 551 also allows the user to set the time and date, display
the firmware revision level, and reset the CSU.
Note that some of these functions require the use of the Supervisory ter-
minal. Refer to Supervisory Terminal Operating Procedures in Section 3
for further discussion.
Part numbers for the DataComm 551 are listed in Table 1-2.
The DataComm 551 is used in pairs in a point-to-point data network over
a T1 link, with one CSU on each end providing the interface between the
T1-compatible customer equipment and the T1 link.
1-3
Housing
DS-1
DS-5R
DFP-11 DS-5NR
√ √
√ √
√
√ √
USS-1D
TPS-1 USS-1-DC/R
TPS-2 USS-1 DC/NR
√ √
√ √
√
√ √