Comtech EF Data SDM-9220 - Manual (Page 102)

SDM-9220/9230 Hardware Installation Guide
5-24 Memotec Inc.
Channelized Digital Interface Cards
The T1/E1 interface cards have four LEDs per port. The ISDN-BRI S/T interface card has
two LEDs per port. For the LED locations refer to:
• “The Single Port T1/E1 interface card (top)” on page 5-19
• “The Dual Port T1/E1 interface card (bottom)” on page 5-19
• “The ISDN-BRI S/T interface card” on page 5-21 .
FXO ACT (one
for each
port)
Green Activity (traffic transmitted or received) on
the analog voice port located immediately
above the LED. Blinks when the channel
detects ring voltage
Universal
E&M/PTT ACT (one
for each
port)
Green Activity (traffic transmitted or received) on
the analog voice port located immediately
above the LED
Intf. Card LED Color Indication
Table 5-7: Status LED indicators on analog voice interface cards