Memotec NetPerformer SDM-9120 Series, Руководство по установке оборудования

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NetPerformer Hardware Installation Guide
4-36 Memotec Inc.
NOTE:
T1 operations are indicated when the port LED labeled
T1-E1
is green. E1
operations are indicated when the
T1-E1
LED is yellow. To interpret the other
status LEDs, refer to “Interface Card Status LEDs” on page 4-39 .
T1/E1 Interface
Cards at 75
Ohms Ordering part numbers for the SDM-9220/9230:
161-1032-001
(single port interface card) or
161-1032-002
(dual port interface card) with
AG2CA0001
(RJ-48 to dual BNC cable)
Ordering part numbers for the SDM-9120:
161-1332-001
(single port interface card) or
161-1332-002
(dual port interface card) with
AG2CA0001
(RJ-48 to dual BNC cable)
Ordering part numbers for the SDM-9140:
161-1432-001
(single port interface card) or
161-1432-002
(dual port interface card) with
AG2CA0001
(RJ-48 to dual BNC cable)
•
Supports digital voice/data at 75 Ohms
•
Provides a 2.048 Mbps channelized digital connection with up to 32 timeslots
•
Single port interface with one RJ-48 female connector
•
Dual port interface with two RJ-48 female connectors
•
RJ-48 to E1-75 dual BNC adapter cable provides an E1-75 connection
•
G.704 framing and HDB3 line coding.
•
Maximum 3 interface cards per unit, providing a maximum of 120 voice channels
or 124 data channels.
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 the other slots
.
Workaround:
Substitute a dual port T1/E1 interface card for the T1 interface,
and configure it for T1 operations.
Caution
To prevent electromagnetic interference, you must also strap 2 jumpers
for each port that will be used as an E1-75 connection. For details and
installation procedure, refer to
“E1-75 Jumpers” on page 3-13 .