Juniper Networks M120 manual E1 PICs, Left E1 RJ-48 PIC Right E1 Coaxial PIC

M120 Internet Router PIC Guide

E1 PICs

	Left: E1 RJ-48 PIC; Right: E1 Coaxial PIC
Software release	■ JUNOS 8.0R2 and later (Type 1)
	NOTE: These PICs are not supported in JUNOS Release 8.1R1.

Description	■	Four E1 or coaxial ports
	■ Power requirement: 0.08 A @ 48 V (3.74 W)
	■	Two versions:
		■	4-port, 120-ohm, RJ-48
		■	4-port, 75-ohm, coaxial
	■ Onboard DSU functionality for E1 connectivity
Hardware features	■	High-performance throughput on each port at speeds up to 2.048 Mbps, full duplex
	■ Maximum transmission units (MTUs) of up to 4500 bytes
	■ Per-interface diagnostics and loopback control
	■ Per-interface shaping on output
	■ Per-interface alarm and event counting and detection
	■	HDB3 line coding

■ 4-bit CRC for G.704 framed mode ■ Per-port loop timing

■ Balanced and unbalanced modes ■ Packet buffering, Layer 2 parsing ■ Full bit error rate test (BERT)

50■ E1 PICs