Chapter 2 Installation
System Configuration
2-3
TC8612 Rev 1.1 User Manual
2.
The "AMI" LED on the rear panel will be Lit or Off depending on the setting
of the rear panel DIP switch SW4. The LED will be Lit when SW4 is “Off”
(Up) position, set for AMI. The LED will be Off when SW4 is “On” (Down)
position, set for B8ZS (T1) or HDB3 (E1).
3.
The "ALM" and "SYNC" LEDs on the front panel will be flashing indicating
that the T1/E1 connection is not established. This is normal when T1/E1
connection has not been established.
2.7
System Configuration
The TC8612 has been pre-tested and switches have been set per factory
specifications. The channels can be factory configured (in groups of four) for RS-
232, RS-422 and RS-485 interfaces at the time of ordering.
2.7.1
Front Panel
Figure 2-1 TC8612 Front Panel
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.
