Polycom DOC2237A manual Isdn

	MGC Hardware and Installation Manual
Table 1-1: MGC Specifications
Channel aggregation	H.221, BONDING, Multi-Rate (H0)
Network interfaces	ISDN:
	T1 PRI, E1 PRI, Multirate ISDN, NFAS, Leased
	lines-T1/E1, Switched 56
	T1-CAS
	T1-CAS lines for Audio Only connections
	ATM:
	25 (FVC.COM), 155 (FVC.COM)
	IP (H.323 and SIP):
	LAN
	Serial:
	V.35, RS449, RS530/A
External	MGC-50/MGC-100
Communications
Data rates	56 Kbps - 1920 Kbps (E1)
Network interfaces	ISDN T1/ E1, ATM-25 (First Virtual), ATM-155 (First
	Virtual), T1-CAS, LAN, serial (MPI)
MGC Manager control	An independent LAN connection (separate from the
connection	Network connection)
Clock synchronization	Synchronizes to external network

Local/Remote External Equipment

MGC-50/MGC-100

Operator workstations	LAN/RS-232/Modem/Internet
Reservation systems	LAN/Internet/Modem

Environment

MGC-50/MGC-100

Operating temperature	10°–40°C (50°–104°F)
Storage temperature	-40°–70°C (40°–158°F)
Relative humidity	15%-90% no condensing
Operating altitude	Up to approx. 3,000m (10,000ft)
Storage altitude	Up to approx. 12,000m (40,000ft)

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