SSG 500 M Series Hardware Installation and Configuration Guide
18 Front Panel
Dual-Port T1 or E1
The dual-port T1 PIM (shown in Figure 9) and dual-port E1 PIM (shown in
Figure 10) provide a physical connection to T1 or E1 network media types. Each
PIM has two physical T1 or E1 ports with an integrated channel service unit (CSU)
or data service unit (DSU).
Figure 9: Dual-Port T1 PIM
Figure 10: Dual-Port E1 PIM
These PIMs provide the following key features:
Onboard network processor
Integrated CSU/DSU—eliminates the need for a separate external device
56-Kbps and 64-Kbps modes
Independent internal and external clocking system
Loopback, bit error rate test (BERT), T1 facilities data link (FDL), and long
buildout diagnostics
T1
STATUS
STATUS
PORT 0
PORT 1
E1
STATUS
STATUS
PORT 0
PORT 1
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