LTPH-SM-1052-04
Setting up a 10BASE-2 Configuration
HMS-358 List 5 and List 6
July 14, 2002
23
S
ETTING
UP
A
10BASE-2 C
ONFIGURATION
The HMS-358 can be connected by an external hub to other shelves in a 10BASE-2 network.
M
ULTISHELF
10BASE-2 C
ONFIGURATION
An HMS-358 multishelf 10BASE-2 configuration can be managed locally or by a remote terminal over an X.25
network as shown in
. For the purposes of installation, this manual only describes local management.
For more information on setting up an X.25 connection, refer to the HMU-319 List 5A, List 7A, and List 7C user
manuals.
Figure 15.
Multishelf 10BASE-2 Configuration
•
The bayonet-locking connector (BNC) T-adapter must directly connect to the 10BASE-2
connector.
•
Do not use coax cable between the BNC T-adapter and J32.
•
The first and last shelf in a multishelf system require a 50
Ω
termination.
OUT
DS3
DS3
INPUT POWER: -48V, 30A MAX
10BaseT
33
1
MALE
64
32
33
1
64
32
32
64
MALE
1
33
32
64
MALE
1
33
32
64
1
33
32
64
1
33
MODULE B
MODULE A
FGND
RTN
-48VA
-48VB
RTN
10Base2 HMU
AUX RS-232 PORT
OS RS-232 PORT
10BaseT HMU
J32
J34
J30
J31
P11
P12
TB1
P14
DSX-1 (OUT) PORT 1
LOOP B GROUP 2
HDSL LOOP A GROUP 1 (XMT TO SPAN)
HDSL LOOP B GROUP 1 (RCV FROM SPAN)
DSX-1 (IN) PORT 1
LOOP A GROUP 2
P16
P13
P15
CAUTION:
VOLTAGES UP TO 200 VDC
MAY BE PRESENT
UNDER THIS COVER
UNDER THIS COVER
MAY BE PRESENT
VOLTAGES UP TO 200 VDC
CAUTION:
EXT
ACO
TX
RX
A+
NO
COM
CRT AUD
NC
COM NO
CRT VIS
MAJ AUD
MAJ VIS
MIN AUD
MIN VIS
SYS ID
TB2
TB5
SSC2
SSC3
SSC4
SSC5
SSC6
TB3
TB4
TEST ACCESS
BITS TIMING
SSC1
1
2
TIP
T
RING
R
R
T
TB7
FAN
DSX-1
TEST ACCESS
METALLIC
SHIELD
B-
B+
SHIELD
SHIELD
TB6
A-
OUT
IN
OUT
DS3
DS3
INPUT POWER: -48V, 30A MAX
10BaseT
33
1
MALE
64
32
33
1
64
32
32
64
MALE
1
33
32
64
MALE
1
33
32
64
1
33
32
64
1
33
MODULE B
MODULE A
FGND
RTN
-48VA
-48VB
RTN
10Base2 HMU
AUX RS-232 PORT
OS RS-232 PORT
10BaseT HMU
J32
J34
J30
J31
P11
P12
TB1
P14
DSX-1 (OUT) PORT 1
LOOP B GROUP 2
HDSL LOOP A GROUP 1 (XMT TO SPAN)
HDSL LOOP B GROUP 1 (RCV FROM SPAN)
DSX-1 (IN) PORT 1
LOOP A GROUP 2
P16
P13
P15
CAUTION:
VOLTAGES UP TO 200 VDC
MAY BE PRESENT
UNDER THIS COVER
UNDER THIS COVER
MAY BE PRESENT
VOLTAGES UP TO 200 VDC
CAUTION:
EX
T
AC
O
TX
RX
A+
NO
COM
CRT AUD
NC
COM NO
CRT VIS
MAJ AUD
MAJ VIS
MIN AUD
MIN VIS
SYS ID
TB2
TB5
SSC2
SSC3
SS
C4
SSC5
SS
C6
TB3
TB4
TEST ACCESS
BITS TIMING
SSC1
1
2
TIP
T
RING
R
R
T
TB7
FAN
DSX-1
TEST ACCESS
METALLIC
SHIELD
B-
B+
SHIELD
SHIELD
TB6
A-
OUT
IN
Maintenance
Terminal
OR
RS232
Wideband 3190
System 1
Wideband 3190
System 32
984 feet (300 meters) maximum
BNC T-type adapter
OS port (J30)
10BASE-2 port (J32)
Coaxial cable
50
termination
Ω
50
termination
Ω
X.25
Network
Modem
PC
