Specifications

Installation and Operation Manual Chapter 1 Introduction
ASMi-52 Ver. 2.8 Technical Specifications 1-13
1.4 Technical Specifications
Line Interface
Type 2/4-wire unconditioned dedicated line (twisted pair)
Line Coding TC-PAM
Range See Table 1-1
Impedance 135Ω
Connector RJ-45
Standard ITU-T 991.2, ETSI 101 524, G.826
E1 Jitter Performance As per ITU G.823
Protection ITU K.21, UL1950
DTE Interface
Data Rate Depends on the DTE/line interface type and clock mode
(see
Table 1-2 and Table 1-3 )
• 2-wire (external clock): 64–2304 kbps,
2-wire (internal clock): 64–2048, 2304 kbps
• 4-wire (external clock): 64–4608 kbps,
4-wire (internal clock): 64–4096, 4608 kbps
Coding E1: HDB3
T1: B8ZS or AMI
Line Impedance E1: 120Ω, balanced 75Ω, unbalanced (via adapter cable)
T1: 100Ω, balanced
Connectors X.21: 15-pin, D-type, female
V.35: 34-pin, female
RS-530: 25-pin, D-type, female
E1: RJ-45, balanced or unbalanced (via adapter cable)
T1: RJ-45
Ethernet (10/100BaseT bridge with VLAN support) –RJ-45
Management
Ports
V.24/RS-232 Control Port
Interface V.24/RS-232 DTE
Connector 9-pin D-type, female
Format Asynchronous