Specifications; Pin Allocations - Mitel 3300 ICP Hardware Technical Reference Manual

C 2
HAPTER
The digital trunk port can be configured as a T1 interface (1.544 Mbps) that provides 24 B-channels for
T1/D4 and 23 B-channels for ISDN PRI or QSIG. The DSP provides resources for CLASS tone genera-
tion, Record-a-Call conferences, DMTF receivers, and voice echo cancellation.
Compression and T.38 services are provided by the DSP-II MMC card. No compression is licensed on
the dual or quad 21161 DSP-I MMCs.

Specifications

Refer to and Dual T1/E1 Framer and T1/E1 Combo

Pin Allocations

T1/E1 Combo Card Pin Allocations (Sheet 1 of 2)
Table 2.11:
Pin Number
1
2
3
4
F U
IELD PGRADEABLE AND
Figure 2.12:
Specifications.
Signal
Network Termination
(Default)
Rx Ring
Rx Tip
–
Tx Ring
R C
EPLACEABLE ONTROLLER
T1/E1 Combo Card
Line Termination
Tx Ring
Tx Tip
–
Rx Ring
M (AX, MX , CX II)
ODULES E I
3300 ICP C
ONTROLLERS
23