13
14
4.3.3 Two-Wire and Four-Wire Cable Connection Via RJ-45
1.
The Line Interface Port on the Model IM2RC/F-128K’s twisted
pair interface is polarity insensitive and is wired for a two-wire
interface.
2. Proper 2-Wire Pairing between the two modems is as follows:
SIGNAL
PIN#
PIN#
SIGNAL
TIP
4--------------------------------------------- 4
TIP
RING
5--------------------------------------------- 5
RING
3. Proper 4-Wire Pairing between the two modems is as follows:
SIGNAL
PIN#
PIN#
SIGNAL
Tx
4--------------------------------------------- 3
Rx
Tx
5--------------------------------------------- 6
Rx
Rx
3--------------------------------------------- 4
Tx
Rx
6--------------------------------------------- 5
Tx
5.0 OPERATION
Once the Model IM2RC/F-128K is installed and configured, it
should operate transparently. This sections describes a typical applica-
tion and general operating instructions.
5.1 TYPICAL APPLICATION
The Model IM2RC/F-128K allows a remotely connected LAN or
high speed application to connect to the 128/G.703 (PCM) network
through a pair of Patton baseband modems. Figure 8 (below) shows a
typical application of the IM2RC/F-128K.
5.2 OPERATING INSTRUCTIONS
In order to operate, the Model IM2RC/F-128K must be installed in
the rear of a Patton 16 port rack or a 2, 4, or 8 port ClusterBox™ chas-
sis. A front function card, such as a baseband modem, CSU/DSU, or
HDSL modem meets the IM2RC/F-128K rear card in the mid-plane of
the chassis. The IM2RC/F-128K also requires a G.703 connection to
the 128 kbps co-directional PCM network and a line connection to a
remote Patton transmission device. After applying power, the function
card and IM2RC/F-128K operate transparently according to the applied
settings (Please refer to the function card manual for further details).
NOTE:
The pin designations shown above are to be used
when connecting to another IM2RC/F-128K or other similarly
pinned line interface on a Patton rear card. Please review the
appropriate function card user manual or stand-alone product
user manual to determine the correct pin assignments.
Figure 8: IM2RC/F-128K Typical Application
LAN
Router
G.703
PCM
Network
Rack-Mounted
Baseband Modem, CSU/DSU,
HDSL Modem, etc. with
IM2RC Rear Card
Remote Baseband
Modem, CSU/DSU, HDSL
Modem, etc.
