Product Description
Memotec Inc. 4-35
page 3-13.
• Framing and line coding:
T1: D4 or ESF framing and B8ZS, B7ZS or AMI line coding
E1: Provides G.704 framing and HDB3 line coding
• Maximum 3 interface cards per unit, providing a maximum of 120 voice channels
or 124 data channels
NOTE: Requires DSP resources for voice calls (see “DSP Resources” on page 4-21).
• Interoperability with other channelized digital interface cards:
- Can be installed and operated on a unit that has one or more single/dual port
T1/E1 or legacy E1 interface cards installed in the other slots.
- Cannot be installed on a unit that has one or more legacy T1 interface
cards installed in another slot.
Workaround: Substitute a dual port T1/E1 interface card for the T1 interface,
and configure it for T1 operations.
Figure 4-27: Single-Port and Dual-Port T1/E1 Interface Cards
Dual-port
interface card
Single-port
interface card
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