Product Description
Memotec Inc. 4-33
NOTE: To meet EMI homologation requirements, using the specific cables included with
the E&M interface card is mandatory.
For the Quad E&M:
- KT-0021370
- Kit, 4 x cables for E&M, SDM-9140
- cable: CA-0021857
The universal E&M/PTT interface card:
• Provides a local (on-premises) E&M tie-line connection to an analog PBX.
• Supports E&M Types I, II and V.
E&M type selection is made through soft strapping. The E&M interface card is set
to Type I at the factory. To change to a different type, configure the E&M Type
parameter using the LINK item of the SETUP/SLOT menu. For details on product
configuration, consult the NetPerformer Reference Guides.
• Supports Immediate Start, Wink Start or customized signaling on each E&M line.
• Quad port interface with 4 RJ-45 female connectors.
• Equipped with an onboard DSP processor.
• Supports voltage from -48VDC to +48VDC.
Up to 2 E&M interface cards can be installed in the SDM-9120 or SDM-9220, 3 in the
SDM-9230, or 4 in the SDM-9140 providing up to 16 analog E&M voice ports in a single
unit.
To interpret the status LEDs on this interface card, refer to “Interface Card Status LEDs”
on page 4-39.
E&M signaling requires two sets of wires: one to carry signaling information (the E and the
M leads), and the other to carry the VF audio signals.
Figure 4-26: The E&M Interface Card
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