ADTRAN 2FXS/DPO PM - Manual (Page 4)

4 Section 61109403L2-5, Issue 3 61109.403L2-5C
When the option BOTH is selected, tone is placed on
both the loop and the network.
Accessing Tests Through EASYMENU
Once the unit is in normal operation, these test features
are accessed by selecting:
Channel Unit Menus (3)
Desired slot (1-24)
Test (4)
These tests are service affecting.
Faceplate Indicators
The 2FXS/DPO faceplate indicators and descriptions
are explained in Table F.
Table E. 2FXS/DPO Faceplate Indicators
The 2FXS/DPO PM has four faceplate indicators and a
depressed provisioning switch. The front panel PM
(Performance Monitoring) indicator
Flashes during
control link establishment and remains ON after the
channel unit has been remotely provisioned.
If the channel unit has been remotely provisioned, the
operator can alternate between the remote configuration
data stored in nonvolatile memory or manual switch
settings by pressing the momentary AP (Alternate
Provisioning) switch located on the front panel.
The REM indicator remains ON when the channel unit is
operating based on Remote Provisioning, and is OFF
when based on manual switches. If the channel unit has
never been remotely provisioned, the AP switch has no
effect and the REM indicator remains
OFF . The REM
LED Flashes when an invalid operation mode is selected.
Indicator
REM Off
Green
Flashing
Unit is manually provisioned.
Unit is remotely provisioned.
Configuration/provisioning error.
BUSY Off
Green
Network and Loop On-hook.
Network, Loop, or both are Off-
hook.
PM Off
Green
PM mode is not operating.
PM mode is operating.
TEST Off
Yellow
All tests are inactive.
Test is active.
Indication Description
Switch
AP Depressed
Alternate provisioning switch.
Changes provisioning source
from manual to remote or remote
to manual.
Selection Description
2FXS/DPO
1109403L2
PM
AP
REM
PM
TEST
BUSY
3. CONNECTIONS
The 2FXS/DPO PM occupies one card position in the D4
channel bank. The connector pin assignments are
detailed in Figure 3.
4. TESTING
The 2FXS/DPO performs
a self test after power on.
During this time all four
indicators turn
On in a
predefined sequence
while the 2FXS/DPO
verifies proper operation
of critical circuits in the
design. After successful
completion of the self test,
all indicators function in
their normal mode.
Digital Loopback Test
The Digital Loopback Test
is used to test loopback
data coming from the
network. Received data,
or RNPCM, is latched in
during the appropriate
receive time slot. This
data is then placed on the
TDATA bus during the
unit's transmit time slot.
Network On-hook/Off-hook Test
The Network On-hook/Off-hook test is used to test
signaling sent to the network by the unit. When On-hook
Test is selected, On-hook signaling is sent to the network.
When Off-hook Test is selected, Off-hook signaling is
sent to the Network. The customer loop is forced On-
hook while this test is active.
Customer Ringing Test
The Customer Ringing Test will activate the unit's ring
relay in a 2-on/4-off ring cadence, providing ringing to
the customer loop when a ring generator is properly
connected to the channel bank.
1004 Hz DRS Tone Generation Test
The 1004 Hz DRS (Digital Reference Signal) Tone
Generation test is used to send the DRS signal to the
network, loop, or both. When Network is selected, the
DRS is sent to the network from the unit. The far end unit
should measure a 1004 Hz tone at a level determined by
the circuit gain of the far end unit. When Loop is
selected, the DRS is placed on the receive path. The
loop receive level is determined by the following equation:
Receive Level = 0dB - Attenuation
Figure 3. Connector
Pin Assignments
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
FRM GND
-12V
12V GND
+12V
5V GND
TWD
TSP
TSQ
RNPCM
RFA
TDCLK
RSP
RNDIS
-48 FRT
-48 SPRT
TFCC
2N
T
RT
RG
+5V
TDATA
RFB
RCLK
RWD
RSQ
-48F
-48SD
R
BT
20HZ
IN