Comtech EF Data SDM-9220 - Manual (Page 91)

Product Description
Memotec Inc. 5-13
5.9 Interface Cards
The NetPerformer interface cards add optional hardware interfaces to the SDM-9220/9230
unit. They provide a physical interface to external devices and networks, scalable to the
needs of your application.
• The SDM-9220 can be installed with a maximum of 2 interface cards.
• The SDM-9230 can be installed with a maximum of 3 interface cards.
The interface cards slide into slots located at the rear of the unit (see Figure 5-1 on “Rear
View of the SDM-9230 UAC” on page 5-2 ). To install an interface card in the SDM-9220/
9230 chassis, follow the procedure in “Installing an Interface Card” on page 4-18 .
There are three types of interface cards:
• Analog voice interface cards: FXS (dual or quad port), FXO (dual or quad port),
E&M/PTT (quad port)
• Channelized digital interface cards: T1/E1 (single or dual port), ISDN-BRI S/T
(dual port)
• Dual serial port (WAN) interface card.
5.9.1 Analog Voice Interfaces
Four analog voice interface cards are available: FXS (dual or quad port), FXO (dual or
quad port), Universal E&M/PTT (quad port).
FXS Interface Cards
Ordering part numbers: 161-1050-000
for the dual FXS interface card
161-1026-000
for the quad FXS interface card
• A Telco/PTT interface that acts like a PSTN Central Office
• Provides a Subscriber Line connection to a conventional two-wire analog tele-
phone (pulse dial or DTMF touchtone)
• Generates loop current and ring voltage (derived from -48V) as well as pulse dial
or DTMF tones
• Detects off-hook and on-hook states
• Dual port interface with 2 RJ-11 female connectors for the dual FXS interface
card
• Quad port interface with 4 RJ-11 female connectors for the quad FXS interface
card
• Equipped with an onboard DSP processor.