RS-232 Communications
Surge Protection for Communication Devices
23
Figure 18. Console Connected to a Remote Device via Short-Haul Modem
Surge Protection for Communication Devices
In locations that are subject to high levels of noise and power surges, the use of a surge protector is
recommended. The following models are available from B&B Electronics by phone: 1-815- 433-5100, or web:
http://www.bb-elec.com:
•
Telephone Line Surge Protector, model TLSP
•
RS-232 Surge Protector, model 232DSP
Computer
Loopback
Normal
S2
DCE
DTE
S1
Black Box Model: ME800A
To
Available
Port
Loopback
Normal
DCE
DTE
S1
DB-25 Connector
Console
DB-9 Connector
2 Twisted Pairs (24 - 26 AWG)
consoles\tls50\shmodm.eps
S2
TD
RD
Flash red & green
= Required selection
EN
DIS
RTS/DTR
CONTROL
Color 1
Gnd
TX-
TX +
RX-
RX+
Color 2
Color 1
Color 2
Color 1
Gnd
TX-
TX +
RX-
RX+
Color 2
Color 1
Color 2
Black Box Model: ME800A
TD
RD
Flash red & green
EN
DIS
RTS/DTR
CONTROL
DB-25 Connector
DB-9
Connector
DB-25
Connector
TLS-50
ALL FUNCTIONS NORMAL
T1 VOL: 9889 GAL
