Instructions

PSI-MODEMSHDSL/SERIAL
5-2
PHOENIX CONTACT 104275_en_c00
007 Link quality sufficient DSL STAT LED
pulsing (short
flashes every 3
s)
The link quality was specified as
"sufficient" which is due to
1. Massive interference, high
crosstalk to another cable
2. A too high data rate
3. A too long/poor cable
1. Check DSL installation:
– Check whether the wire
pair is connected correct-
ly (twisted pair, star quad
stranding).
– Check cables for line in-
terruption / short circuit
– If available, connect cable
shield
2. Reduce DSL data rate
3. Reduce DSL data rate
008 Devices connected as a
ring
ERR LED and
DIAG LED on
Installation error: A closed ring was
created in the „Linear structure“
operating mode
The ring must be interrupted.
009 Error when booting the
SHDSL controller
VCC LED and
ERR LED blink-
ing (2 Hz)
SHDSL chip defective Replace device
010 Device is connected to it-
self
ERR LED and
DIAG LED on
Installation error:
1. A link has been established
between DSL ports A and B of
a device.
2. Due to a direct link or heavy
crosstalk, for example, if the
lines of SHDSL_A and
SHDSL_B are in the same ca-
ble.
1. Check the cable resistance
between SHDSL_A and
SHDSL_B.
2. Check whether the wire pairs
are connected correctly (twist-
ed pair, star quad stranding)
3. Check cables for line interrup-
tion/ short circuit
011 A device configured as 4-
conductor tries to con-
nect to a device that is not
configured as 4-conduc-
tor.
ERR LED and
DIAG LED on
Wrong device configuration.
Mixed operation between devices
with different configurations
– Linear structure (2-conductor)
–and point-to-point structure
(4-conductor)
Configure the devices correctly
using the PSI-CONF software.
012 reserved
013 reserved
014 reserved
015 reserved
016 reserved
017 Collisions on the RS-485
interface
ERR LED and
DIAG LED on
Data packets received on the
SHDSL line should be sent to the
RS-485 port, although data is si-
multaneously received by this port.
That means, the timing of the sys-
tem does not fit.
The SHDSL lines may produce
large latency times.
Timeout periods of the system
may need to be adjusted accord-
ingly, i.e. be increased.
018 Loss of data on the serial
interface
ERR LED and
DIAG LED on
Data arrives faster on the serial
port as it can be read.
– reduce data rate of serial Inter-
face
– larger pause times between
data packets / messages
Table 5-1 Diagnostic IDs
No. Meaning LED Possible cause(s) Remedy