Mitel 3300 Technician's Handbook page 73

Table 19 (page 56), Table 20 (page 57) and Table 21
(page 58) show the pinout signals of the interface cards
as they appear on J1 through J8. The following
abbreviations are used in the tables:
• ONS L C: ONS line card and ONS CLASS/CLIP line
card
• OPS L C: OPS line card
• LS/GS Trunk: Loop Start/Ground Start Trunk card
• E&M Trunk: E&M trunk card
• DID/LT Trunk: direct inward dialing/loop tie trunk card
• DID/2 Trunk: direct inward dialing
• COV L C: SUPERSET 4 line card
• DNI L C: digital network interface line card.
Installation
55