Verilink 200 (CG) Configuration/Installation Guide - Manual (Page 4)

TxPORT 200 Rear Panel
TxPORT Customer Service
127 Jetplex Circle
Madison, Alabama 35758
Customer Service Returns:
800-926- 0085, ext. 227
Product Technical Support
(8 a.m. to 5 p.m.)
800-285-2755 or
205-772- 3770, ext. 255
After Hours Hot Line:
205-551-7538
DTE NET
Local Loopback
DTE NET
Remote Loopback
AIS
8 1
NET
8 1
DTE
7 6 5 4 3 2 1 8 6 5 4 3 2 1 7
S1 S2
PWR
(+) GND PWR
(-) GND
-20 to -56 VDC
MAX CURRENT, 100 MA
A
B
Pin NET DTE
1 Data In (R1) Data Out (R)
2 Data In (T1) Data Out (T)
3/ 6 Not Used Not Used
4 Data Out (R) Data In (R1)
5 Data Out (T) Data In (T1)
7/ 8 Chassis Gnd Chassis Gnd
RJ48C Interfaces
200 CSU connections are made on
the following terminals using 20-
gauge stranded (or similar) wire:
GND (Ground)
PWR- (-48 VDC, ± 6 V, 45 mA)
PWR+ (Return)
Power Connection
A
Lo
op
5 4 3 2 1 6 8
B
Lo
op
AIS
Ne
tw
o
rk Da
ta
7
One
s De
nsit
y
15 Z
er
o
s
One
s De
nsit
y
17
5 Ze
ros
Not use
d
Not u
se
d
B B
B
A
A
A
B
A 0
-22.5
-7.5
-15
Network
LBO
B
A
A
B
A
B
A
B
A
A
B
A
B
B
B
DTE LBO
Mo
de
NET DTE NET DTE
Sp
ar
e
PRM
5 4 3 2 1 6 7
Mode NET DTE NET DTE Spa
re
PR
M
54
016
AMI AMI ESF ESF E
n
ab
le
T
1
.403
B8
ZS
B8
ZS D4 D4
Di
sa
ble
134 - 266 FT.
0 - 133 FT.
267 - 399 FT.
400 - 533 FT.
534 - 655 FT.
Switch S1
Switch S2
1 -2 Network LBO: These 2 positions set the network line build out signal level of data transmitted towards
the T1 facility. Refer to the diagram of Switch S1 for settings.
3 -5 DTE LBO: These 3 positions set the DTE line build out transmit signal value towards the customer equip-
ment. Refer to the diagram of Switch S1 for settings.
6 AIS Enable: Options the unit to either ‘generate’ unframed all ones (an Alarm Indication Signal) to the
DTE during a remote loop (A) or to ‘pass’ the received network signal to the DTE on a remote loop (B).
8 Ones Density: Per AT& T 62411, the ‘Enabled’ mode allows ones density insertion after 15 successive
zeros from the DTE. The ‘Disabled’ mode ignores density control and allows up to 175 zeros to pass
towards the network before a loss of signal is declared.
NOTE: The ‘A’ position is the factory default for
all switch settings. If a particular user configura-
tion requires that a switch be placed in the ‘B’
direction, then mark this sheet for future reference.
1 ESF Mode: 54016 mode - unit responds only to 54016 CSU messages. T1.403 mode - unit responds to
ANSI loop /unloop commands and generates a PRM every second, but will not respond to 54016 messages.
2 Network Code: Sets the network line coding, including conversion.
3 DTE Code: Sets the DTE line coding, including conversion.
4 Network Framing: In the ESF mode, the unit responds to T1.403 or 54016 messages.
5 DTE Framing: Sets the CSU to the framing of the DTE line.
7 PRM: Enables /disables sending a performance report message during an AIS. If the unit detects loss of
sync from the DTE, an unframed all ones signal is generated to the T1 facility. If Switch S2 - 1 is set for
T1.403 operation, the unit interrupts the AIS signal with a PRM once a second.
Switch S1 Description
Switch S2 Description
Loopbacks
The unit can be looped remotely by generating towards it a standard CSU line loopback code (00001
repeating for Š 5 seconds, framed or unframed). Once looped, the received signal from the T1 facility
(NET IN) is regenerated and transmitted back to the T1 facility (NET OUT). The unit is unlooped
remotely by generating towards it a standard CSU line unloop code (001 repeating for Š 5 seconds,
framed or unframed).
DIP switch S1-6 configures the unit to either generate an unframed all ones (AIS) signal to the DTE or
to pass the received data from the network to the DTE. The unit responds to the facility data link (FDL)
loop (PLB,
0000111011111111 ) and unloop command messages ( 0011100011111111 ).
A
B
T R A N S P O R T
®