Paradyne COMSPHERE 3810 User Manual Supplement page 12

COMSPHERE 3800 Series Modems
To ensure compliance with FCC Part 15 Regulations, a ferrite choke must be installed on the
EIA-232-D and RS-366-A interface cables. See Figure 2-4.
EIA-232/V.24
INTERFACE
RS-366-A/V.25
INTERFACE
DIAL
NETWORK
INTERFACE
MODULE
(SLOTS 9 – 16)
FUTURE USE
2-6
1. Open the ferrite choke and place it around the DTE cable as closely as possible to the
connector attached to the modem.
2. Close the two halves around the cable and snap the ferrite choke shut, pressing down on the
plastic latch to secure it.
3. Install a cable tie behind the ferrite choke to prevent it from sliding along the cable.
REAR
CONNECTOR
PLATES
AC
POWER
LEASED
INTERFACE
(SLOTS 9 – 16)
Figure 2-4. Model 3811 Ferrite Choke Installation
September 1998
RS-366-A
DTE
CONNECTOR
POWER
CONNECTORS FUTURE USE
FUSES
EIA-232-D
CONNECTOR
FERRITE
CHOKE
CABLE TIES
DIAL NETWORK
INTERFACE MODULE
(SLOTS 1 – 8)
ALARM E1 & E2
LEASED INTERFACE
(SLOTS 1 – 8)
3810-A2-GB93-30
491-13159