Telephone User Manual

PCB Installation
RMCU/RCMS – E911 CAMA Trunk Direct Interface
Strata CTX I&M 06/04 6-41
PCB Installation
RCMS LEDs
Customer Busy (CB) LEDs – The RMCU firmware controls this LED synchronizing with
off-hook status inside switch.
Network Busy (NB) LEDs – RMCU hardware controls this LED synchronizing with the supply
of voltage from the carrier.
Table 6-20 LED Indications (Normal Operation)
Status
NB LED
(Network Busy)
CB LED
(Customer Busy)
1
No network connection.
RMCU is in stand-by mode.
On Off
2
Network connected.
RMCU is in stand-by mode.
Off
1
1. If the NB LED stays On, even if the modular connector of the network is connected, check the following:
● Tip and Ring could be reversed.
● Network could be busy.
Off
3
Network is in stand-by mode and the RMCU
is off hook.
Network is connected and the RMCU MF
sending dial tone.
Off On
4
Network is seizing and the RMCU is off-
hook.
Flashing On
5
Network is connecting, before ANI is sent,
and the RMCU is sending.
Network is connecting and the RMCU is
communicating.
On On
6
Network is disconnecting first and then the
RMCU disconnects.
On then Off
NB is turned off, then
approx. 400 msec
after CB is turned off.
On then Off
7
RMCU is disconnecting first and then the
network disconnects.
On then Off
NB is turned off
within 700 msec after
CB is turned off.
On then Off