2
Tech Support: 1-800-260-1312 International: 00-1-952-941-7600 (24 hours)
CRS4Fxxxx-10x
Part Number
Part One - Copper
DB-9 Port
Port Two - Fiber Optic
CRS4F3129-100
RS485
1200 m
(4000 ft)*
SC, 1310TX/1550RX nm, single mode
20 km
(12.4 miles)**
CRS4F3129-101
RS485
1200 m
(4000 ft)*
SC, 1550TX/1310RX nm, single mode
20 km
(12.4 miles)**
CRS4F3129-102
RS485
1200 m
(4000 ft)*
SC, 1310TX/1550RX nm, single mode
40 km
(24.8 miles)**
CRS4F3129-103
RS485
1200 m
(4000 ft)*
SC, 1550TX/1310RX nm, single mode
40 km
(24.8 miles)**
Part Number
Part One - Copper -6-
position terminal block
Port Two - Fiber Optic
CRS4F3229-100
RS485
1200 m
(4000 ft)*
SC, 1310TX/1550RX nm, single mode
20 km
(12.4 miles)**
CRS4F3229-101
RS485
1200 m
(4000 ft)*
SC, 1550TX/1310RX nm, single mode
20 km
(12.4 miles)**
CRS4F3229-102
RS485
1200 m
(4000 ft)*
SC, 1310TX/1550RX nm, single mode
40 km
(24.8 miles)**
CRS4F3229-103
RS485
1200 m
(4000 ft)*
SC, 1550TX/1310RX nm, single mode
40 km
(24.8 miles)**
The CRS4F3129-10x media converters use a male DB-9 port for the copper link:
The CRS4F32xx-10x media converters use a 6-position terminal block for the copper link:
*
Maximum cable distance is 1200m
(4000 ft)
@ <90 kb/s decreasing logarithmically to
92m
(300 ft)
@ 500 kb/s.
**Typical maximum cable distance. Actual distance is dependent upon the physical
characteristics of the network installation.
[email protected] -- Click the “Transition Now” link for a live Web chat.
3
Installation
CAUTION: Wear a grounding device and observe electrostatic discharge precautions
when setting the switches. Failure to observe this caution could result in damage to,
and subsequent failure of, the media converter.
Set the 6-Position Switch
The 6-position switch is located on the side of the media converter. Use a small flat-
blade screwdriver or a similar device to set the recessed switches. Refer to the
drawing for the locations of the six individual switches.
Switch 1 - 130 ohm resistor on “receive”
up
= Disable
down
= Enable
(Switch 5 must also be set to “4-wire” (down)
When enabled, switch 1 inserts a 130 ohm resistor on the wire pair:
•
Receive (-) (B) RS485 4-wire, receive (-) RS422
•
Receive (+) (A) RS485 4-wire, receive (+) RS422
Switch 2 - 130 ohm resistor on “transmit”
up
= Disable
down
= Enable.
(Switch 5 must also be set to “2-wire” (up)
When enabled, switch 2 inserts a 130 ohm resistor on the wire pair:
•
Transmit/Receive (-) (B) RS485 2-wire, transmit (-) RS422
•
Transmit/Receive (+) (A) RS485 2-wire, transmit (+) RS422
Switch 3 - 1K ohm “pull-down”
up
= Disable
down
= Enable.
(Switch 5 must also be set to “2-wire” (up)
When enabled, switch 3 enables a 1K ohm pull-down on the wire:
•
Transmit/Receive (-) (B) RS485 2-wire, transmit (+) RS422
130 Ohm Resistor on Receive
1K Ohm Pull-Down
1K Ohm Pull-Up
2-Wire/4Wire
RS485/RS422
130 Ohm Resistor on Transmit
1
2
3
4
5
6
