SDM-9XXX Series Hardware Installation Guide
4-26 Memotec Inc.
• Maximum 3 interface cards per unit, providing a maximum of 6 ports and 12 B-
channels for voice or data.
To interpret the status LEDs on this interface card, refer to “Interface Card Status LEDs”
on page 4-27.
NOTE: You must install a ferrite on each cable connected to an ISDN-BRI S/T
port on an SDM-9220 UAC or SDM-9230 UAC installed in the European
Union or Russia. These ferrites are
not provided with the product package.
For instructions, turn to “Installing the Ferrites (EMI Filters)” on page 3-26.
4.10.5 Dual Serial Port (WAN) Interface
Ordering part number for SDM-9220/9230: 161-1035-000
The dual serial port interface card (also referred to as the Dual SCC interface card)
provides the capacity to increase the number of serial ports on the SDM-9220/9230
according to data traffic needs.
Only one slot on the SDM-9220 or SDM-9230 can be loaded
with a dual serial port interface card.
Ordering part number for SDM-9120: 161-1335-000
(Single Serial Port (WAN) Interface
only)
The single serial port interface card (also referred to as the single SCC interface card)
provides the capacity to increase the number of serial ports on the SDM-9120 according to
data traffic needs.
These interface cards have the following characteristics:
• 1 or 2 universal serial ports per interface card, supporting V.35/V.11, TIA-232
(V.24), X.21, X.21 CE, TIA-449 (V.36) and TIA-530 interfaces
• HD-26 female connectors that provide auto-detection of interface and gender
according to the type of HD-26 custom cable that is installed. For details, refer to
“Custom Serial Cable Specifications” on page 5-6.
Figure 4-16: The ISDN-BRI S/T interface card
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