E1/T1 PCI card installation guide
11
Note
Besides E1 and T1 ports requiring different firmware, E1 firmware also needs to support both 75 and 120ohms, for example, ETS300
firmware uses a switch
–s61,1
for 75ohms (default 120ohms), but E1 DASS requires the firmware DASSX75R (X being N or U) for
75ohms working. Refer to the Call, Switch and Speech Driver Installation Guide for further details
To connect to 75ohm E1 networks, RJ45 to BNC adapters are needed. The correct configuration
of these adapters is shown below:
Aculab RJ45
'T' piece
RJ45 to BNC
adapter
RJ45 to BNC
adapte
r
Ac
u
lab c
ard
f
ac
epl
at
e
Port
RJ45
socket
Aculab card
Port
RJ45
socket
Port
RJ45
socket
Patch cable is not supplied by Aculab
Patch cable
WHITE = TRANSMIT
BLACK = RECEIVE
2.6
Prosody PCI card endplate LED usage
The endplate of the Prosody PCI card displays a block of eight LED’s.
The red LED’s correspond to the network ports. With the exception of ISUP firmware, the LEDs
will be on until firmware has been successfully downloaded to the corresponding port. For
ISUP, the LEDs will be on until an active E1 link has been connected to the port. Activity on a
port may cause the LEDs to flash momentarily.
The green LED’s indicate the Prosody SHARC processor state, however their operation is
firmware dependent. As a general guide, the LED’s will flash to indicate activity. Error states are
normally indicated by either a permanent on of off state. Should you be experiencing problems,
contact Aculab Support for further clarification.
2.7
PM module LED usage
There are up to 12 surface mount LEDs mounted on the PM module. These are difficult to see
after the card has been installed. The LEDs are arranged in 4 rows, one for each port.
LED A, LED B, LED C, PORT 3
LED A, LED B, LED C, PORT 2
LED A, LED B, LED C, PORT 1
LED A, LED B, LED C, PORT 0
Current production is LED A red, LEDs B & C green.
While a microprocessor is in the reset state the LED A is on. It will go out when firmware is
downloaded to the port. LED B turns on briefly during firmware download.
ISDN protocols
LED B flashes when layer 1 transmits a frame. LED C flashes when layer 1 receives a frame. The
quiescent state of LEDs B & C indicates the state of layer 1.
When both LEDs are off, layer 1 is inactive, and the LEDs will flash on to indicate frames.
When both LEDs are on, layer 1 is active (F1 or F2 state), and the LEDs will flash off to indicate
frames.
CAS protocols
The state of LEDs B & C indicate Line State.
When both LEDs are off, there is a line problem (for example, no signal or loss of sync).
When both LEDs are on, the line is active. LED B/LED C will flash off when a digit is
transmitted/received.
Note
If the power supply voltage goes outside of tolerance, the board will go into the reset state. This is indicated by all four of the A (Red)
LEDs being on.