Connecting the Network Interface
800-357-104-01, Revision 01
22
September 29, 2000
HMS-357 List 4 and List 5
C
ONNECTING
THE
N
ETWORK
I
NTERFACE
Figure 16.
Network Interface Connections
For all network connections, shielded cables are required.
For 10BASE-T connections, Category-5 shielded cables are required.
Step
Procedure
Installer Check
ü
ü
ü
ü
Whenever installing or removing units from the HMS-357 chassis, be sure to wear an
antistatic wrist strap and connect it to the ESD strap input.
1
Determine the network interface for your application
10BASE-2 (coaxial)
10BASE-T (Category-5)
DB-25 (modem)
Select One
H
H
H
2
Connect the appropriate network interface cable (10BASE-2, 10BASE-T, or DB-25) coming from the
network to the appropriate network interface connector located on the rear of the shelf (see
).
H
For connector pinouts, see
3
Proceed to
“Installing a Management Unit (HMU)” on page 25
H
Installer Signature
?
?
?
?
Date
Table 5.
Pinouts for 10BASE-2 Interface
Pin
Description
Center
LAN
Shield
LAN-
10BaseT HMU
OSS RS-232 PORT
AUX RS-232 PORT
10Base2
HMU
10BaseT HMU
OSS RS-232 PORT