Chapter 1 Introduction
Product Description
1-3
TC8612 Rev 1.1 User Manual
Figure 1-2 TC8612 Front LED Definitions
1.2.1
Features
•
8-channel Dry Contact
•
T1 Features:
-
ESF Framing Support (SF Framing, Optional)
-
Supports Line Length up to 3000ft (T1)*
-
24 timeslots (DS0) 1-24. TC8612 utilizes timeslots 12 and 24
•
E1 Features:
-
Supports Line Length up to 2.5km
-
PCM31C Framing Support (PCM30, PCM30C, PCM31 Optional)
-
32 timeslots 0-31. TC8614 utilizes timeslots 15 and 31
•
Very Low Latency - 1.5ms
ALM (Alarm) LED
x
Solid: Latched alarm condition.
x
Flash: Unit detect errors or in loopback mode.
x
Off: Normal condition.
PWR (Power) A LED
PWR (Power) B LED
x
Solid: Power supplied is good.
x
Off:
Power supply failed or card fuse is burned.
Vcc LED (Voltage) LED
x
Solid: 5V DC is good.
x
Off:
No 5V DC is supplied to this card.
RMT (Remote Status Mode) LED (Activated by “R2”)
x
Solid: Remote status.mode. (BPV, CRC, SYNC)
x
Flash: Remote status not available.
x
Off:
Local status mode. (BPV, CRC, SYNC).
BPV (Bipolar Violations) LED
x
Blink: Latched BPV error indication.
x
Flash: Unit detected bipolar violations.
x
Off: Normal condition.
CRC (T1/E1 CRC Error) LED
x
Blink: Latched CRC error indication.
x
Flash: Unit detected CRC error.
x
Off: Normal condition.
SYNC (Loss of Frame) LED
x
Solid: T1/E1 sync. (Normal condition)
x
Blink: Latched T1/E1 sync loss indication.
x
Flash: Unit detected T1/E1 sync loss.
Dry Contact Ports
RLY (Dry Contact Relay) LED
Green LED Status
x
Solid: Relay is closed.
x
Off:
Relay is open.
Amber LED Status
x
Flash: Local loopback is enabled.
x
Off:
Local loopback is disabled.
DET (Closure Detector) LED
Green LED Status
x
Solid: Closure detected.
x
Off:
No closure detected.
Amber LED Status
x
Flash: Remote loopback is enabled.
x
Off:
Remote loopback is disabled.
“R2” Button: Multi-Function Button
x
Short Press (< 3 secs)
Toggle between Local (RMT LED Off) and
Remote status mode (RMT LED On).
Local Status Mode (RMT LED Off)
x
Press and Hold (> 3 secs)
Clear local latched indication.
Remote Status Mode (RMT LED On)
x
Press and Hold (> 3 secs)
Clear remote latched indication.
