5.4 CONNECTING THE LINE INTERFACE
The Model IM2RC/I-100B is to be used with Patton function card access products (i.e. 3088RC) There are two essential requirements for con- necting the line interface on Model IM2RC/I-100B:
1.These units work in pairs with one IM2RC/I-100B connected to another IM2RC/I-100B over 2 or 4-Wire Twisted pair (2 or 4-Wire operation is determined by the front function card).
2.To function properly, the Model IM2RC/I-100B needs one or two twisted pairs of metallic wire (two or four wire). The twisted pairs must be unconditioned, dry, metallic wire, between 19 (.9mm) and 26 AWG (.4mm) (Appendix B describes cable requirements). Stan- dard dial-up telephone circuits, or leased circuits that run through signal equalization equipment, or standard, flat modular telephone type cable, are not acceptable.
Figure 8. RJ-45 Line Interface
Note Two-wire modems use RJ-45 pins 4 and 5 and 4-wire modems use RJ-45 pins 3, 4, 5 and 6, as shown above. Refer to the Function Card User Manual for more details.