Ops Line Card; Digital Service Unit; Figure 44. Ops Line Card - Mitel 3300 Technician's Handbook

OPS Line Card

Digital Service Unit

The Digital Service Unit (DSU) provides digital trunk
interfaces for public or private network access, and
specialized digital functions (such as messaging and
ISDN service).
The following cards can be installed in a DSU (some
cards are only available in specific countries):
• DS1 Formatter
• CEPT Formatter
• E1/T1 Digital Trunk Formatter
• BRI Card (6 circuits)
• BRI Card (15 circuits)
• Euro PRI Card
• NA PRI Card

Figure 44. OPS Line Card

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